Sodium chloride is a soluble salt that can be made by mixing sodium hydroxide with an acid. Sodium metal cannot be used because it is too... what?

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Answer 1

Answer:

Reactive.

Explanation:

am sure bro..…….

Answer 2

Because it is too reactive, sodium metal cannot be used to make sodium chloride. Since sodium is a highly reactive alkali metal, it easily interacts with other substances to form new ones.

What is the intraction of the sodium ?

Sodium metal interacts fast with water to produce sodium hydroxide and hydrogen gas. The metal may catch fire and burn as a result of this reaction since it is so exothermic, or heat-producing.

Sodium metal interacts fast with acids like hydrochloric acid to produce sodium chloride and hydrogen gas. However, handling this reaction can be risky due to its high exothermic nature.

There is a significant safety risk since the heat from the reaction might cause the acid to boil and spray.Boil and spatter poses a major risk to people's safety. In comparison, using sodium hydroxide to create sodium chloride is significantly safer.

When sodium hydroxide and an acid are combined, the reaction is significantly slower and less exothermic. This response is considerably simpler to manage and does not provide a significant risk to safety. Sodium hydroxide is also considerably simpler to get than sodium metal. As a result, it is the technique of choice for producing sodium chloride.

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can someone tell me if I answered this question correctly

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Answer:

Yeah you are right great job

Another rock is determined to be 5 half-lives old. If the rock has a total mass of 16 grams, how many grams are stable product?
please explain :) i will give brainliest

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Answer:

Explanation:

If a rock is 5 half-lives old, it means that the fraction of the original radioactive material remaining is (1/2)^5 = 1/32. This also means that the fraction of stable product in the rock is 1 - 1/32 = 31/32.

If the total mass of the rock is 16 grams, we can calculate the mass of the stable product as follows:

mass of stable product = (31/32) * 16 grams

= 15.5 grams

Therefore, the mass of stable product in the rock is 15.5 grams.

A student checks the air pressure in her bicycle tires early in the morning when it is cool outside. If she measures it again later in the day when it is hotter, what will she most likely observe?

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A student checks the air pressure in her bicycle tires early in the morning when it is cool outside.  she will most likely observe that the tire pressure will be the higher when the temperature is the higher.

The Pressure is the result of the collisions of the gas molecules with the walls of the tire. The Temperature is the  measure of the average kinetic energy in the gas molecules. When the temperature will increases, the gas molecules will move the more quickly and they will collide with the tire walls  frequently and the more force.

This is according to the kinetic molecular theory as the Pressure and the temperature are the directly proportional.

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How are food chains interconnected?

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A food chain are interconnected in the sense that it shows a single pathway from the producers to the consumers and  the way energy flows in this pathway.

What is food chain?

This refers to a linear sequence of organisms where nutrients and energy is moved from one organism to the other. This occurs when one organism consumes another organism.

The food chain starts with the producer organism, follows the chain and ends with the decomposer organism. m for survival. For example Grass (Producer) —–Goat (Primary Consumer) —– Man (Secondary consumer).

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Suppose the decomposition of nitryl chloride proceeds by the following mechanism: no2cl(g)→no2(g)+ cl(g) rate constant: k1cl(g)+no2cl(g)→no2(g)+cl2(g)suppose also k1≪ k2. That is, the first step is much slower than the second. A. Write the balanced chemical equation for the overall chemical reaction. B. Write the experimentally-observable rate law for the overall chemical reaction. C. Express the rate constant k for the overall chemical reaction in terms of k_1, k_2, and (if necessary) the rate constant k1 and k2 for the reverse of the two elementary reactions in the mechanism

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The rate constant k for the overall chemical reaction in terms of k_1, k_2 is Equal.

A chemical response is a system that results in the chemical transformation of one set of chemical materials to another. Classically, chemical reactions embody adjustments that best contain the positions of electrons inside the forming and breaking of chemical bonds between atoms, and not using an exchange to the nuclei (no change to the factors present), and can frequently be described by way of a chemical equation. Nuclear chemistry is a sub-area of chemistry that includes the chemical reactions of risky and radioactive factors in which each digital and nuclear change can arise.

The substance (or substances) to begin with worried in a chemical response are called reactants or reagents. Chemical reactions are commonly characterized by a chemical change, and they yield one or extra products, which usually have residences one of a kind from the reactants.

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For the balanced chemical reaction below:
P4O10(g) + 6 H2O(l) —> 4 H3PO4(aq)

(a) Calculate the moles of H3PO4 if there are 6.46 grams of water.
40
(b) Calculate the grams of H3PO4 if there are 0.730 moles of water.
(c) Calculate the grams of tetraphosphorus decoxide if there are 4.78 grams of water.
40
(d) Calculate the moles of H3PO4 if there are 0.898 moles of tetraphosphorus decoxide.

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a. The moles of H3PO4 would be 0.24 mol

b. The grams of H3PO4 would be 48.02 grams

c. The grams of tetraphosphorus decoxide would be 14.2 grams

d. The moles of H3PO4 would be 3.59 mol

Stoichiometric problem

The balanced equation of the reaction is as follows:

[tex]P_4O_{10}(g) + 6 H_2O(l) -- > 4 H_3PO_4(aq)[/tex]

The mole ratio of water and H3PO4 = 3:2

Mole of 6.46 grams of water = 6.46/18 = 0.36 mol

Equivalent mole of H3PO4 = 2/3 x 0.36 = 0.24 mol

With 0.730 moles of water, the equivalent mole of H3PP4 will be: 2/3 x 0.730 = 0.49 moles

Mass of 0.49 mol H3PO4 = 0.49 x 98 = 48.02 grams

Mole ratio of tetra phosphorus decoxide and water = 1:6

Mole of 4.78 grams of water = 4.78/18 = 0.27 mol

Equivalent mole of tetra phosphorus decoxide = 0.27/6 = 0.05 mol

Mass of 0.05 mol tetra phosphorus decoxide = 0.05 x284 = 14.2 grams

Mole ratio of tetraphosphorus decoxide and H3PO4 = 1:4

Mole of tetraphosphorus decoxide = 0.898

Equivalent mole of H3PO4 = 0.898 x 4 = 3.59 mol

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an unknown compoound is decomposed into 6.9 g of na, 3.1 g of p, and 6.4 of o. what is its empirical formula

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The compound's empirical formula is [tex]Na_3P_1O_4[/tex].

We must establish the relative ratios of the components in the compound in order to get the empirical formula for the compound.

The simplest whole-number ratio of the various atoms in a compound is represented by an empirical formula. The molecular formula displays the precise quantity of various atom types present in a compound's molecule.

The masses of Na, P, and O will first be converted to moles:

Na: 6.9g / 23g/mol = 0.3 mol

P: 3.15 g / 31 g / mol = 0.1 mol

O: 6.4g/16g/mol = 0.4 mol

The relative ratios will then be obtained by dividing each value by the smallest value (0.1 mol for P) as follows:

P: 0.1 mol/0.1 mol = 1,

Na: 0.3 mol/0.1 mol = 3,

O: 0.4 mol/0.1 mol = 4.

So the formula is [tex]Na_3P_1O_4[/tex]

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Currents in Earth’s mantle are caused by the constant movement of semi-liquid material between areas with high temperatures near the core and areas with cooler temperatures near Earth’s surface. Use your model from this activity to explain how heat is transferred on a larger scale through such currents

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When the semi-liquid material near the core is heated at high temperatures, it becomes less dense and rises. As it rises, it cools and becomes more dense, eventually sinking back down towards the core.

Heat is transferred through the currents in Earth's mantle due to a process known as convection. In this process, heat is transferred by the movement of a fluid. In the mantle, the semi-liquid material acts as a fluid, which constantly moves from areas with high temperatures near the core to areas with cooler temperatures near Earth's surface.

This constant movement of semi-liquid material, which is driven by the differences in temperature helps to distribute heat evenly throughout the mantle also, it prevents any localized hotspots from developing.

Thus, the convection currents in the mantle play a critical role in controlling the transfer of heat within the earth and helps to regulate the overall thermal energy balance of the planet earth.

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the wedge-dash representation of 2,3-dichloropentane is shown. what is the orientation of the chiral center(s)?

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A carbon atom that is joined to four distinct groups or atoms is known as a chiral centre. The stereochemistry of the molecule and its optical activity are both governed by the orientation of the substituents.

A carbon atom attached to four separate substituents is referred to as a chiral centre or stereocenter. As the orientation of the substituents surrounding the chiral centre can change the molecule's properties, such as its reactivity, solubility, and biological activity, it is a crucial idea in organic chemistry. Wedge-dash representations, which depict the spatial arrangement of the substituents, are used to determine the orientation of the chiral centre. Enantiomers, which are non-superimposable mirror reflections of one another, can be distinguished from one another using this. As enantiomers can have dramatically diverse biological effects even when they share the same chemical makeup, chiral centres play a significant role in medication design.

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For the reaction HCl + NaOH ® NaCl + H2O, how many moles of hydrochloric acid are required to produce 180. g of water?

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The molar mass of HCl is 36.46 g/mol, and the molar mass of H₂O is 18.02 g/mol.

What is molar mass?

Molar mass is a physical property of a substance, defined as the mass of a given substance divided by its amount of substance in moles. It is usually expressed in units of grams per mole (g/mol). Molar mass is used to calculate the mass of a particular substance from its molar quantity, or to calculate the quantity of a particular substance from its mass.

In order to calculate the number of moles of HCl required to produce 180. g of water, we must first calculate the number of moles of H2O that are produced. Since the molar mass of H₂O is 18.02 g/mol, we can divide 180. g by 18.02 to get the number of moles produced:

180. g / 18.02 g/mol = 10.00 moles of H₂O

Now, since the reaction is 1:1 (1 mole of HCl for 1 mole of H₂O), we can simply multiply the number of moles of H₂O produced (10.00 moles) by 1 to get the number of moles of HCl required:

10.00 moles H₂O × 1 mole HCl/1 mole H₂O = 10.00 moles HCl

Therefore, in order to produce 180. g of water, 10.00 moles of HCl are required.

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What are all possible values of the magnetic quantum number m1 for a 3s electron?

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ml= -1, ml= 0, and ml= +1

what is the ph of a solution obtained by dissolving two extra-strength aspirin tablets, containing 450 mg of acetylsalicylic acid each, in 270 ml of water?

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The pH of the solution obtained by dissolving two extra-strength aspirin tablets in 270 mL of water is approximately 3.54.

What is pH of a solution?

pH is a measure of the acidity or (alkalinity) of a solution. It is defined as the negative logarithm of the hydrogen ion (H+) concentration in moles per liter (mol/L) in an aqueous solution. The pH scale ranges from 0 to 14, with 7 being neutral pH. Solutions with a pH less than 7 are considered acidic, while solutions with a pH greater than 7 are considered basic or alkaline.

To calculate the pH of a solution containing acetylsalicylic acid (aspirin), we need the concentration of the acid in the solution. Each extra-strength aspirin tablet contains 450 mg of acetylsalicylic acid, so dissolving two tablets in 270 mL of water gives a total concentration of 2 × 450 mg / 270 mL = 1667 mg/mL.

Next, we need to convert the concentration to moles. Acetylsalicylic acid has a molecular weight of 180.16 g/mol, so the number of moles in the solution is 1667 mg / 180.16 mg/mol = 9.24 x [tex]10^-{4}[/tex] moles.

The pKa of acetylsalicylic acid is 3.5, so at a pH of 7.0, the majority of the acetylsalicylic acid will exist in its acidic form (as the acetylsalicylic acid anion). The concentration of acetylsalicylic acid in its acidic form can be calculated using the Henderson-Hasselbalch equation:

[tex]pH = pKa + log([A^-]/[HA])[/tex]

Where [tex][A^-][/tex]is the concentration of acetylsalicylic acid anion and [HA] is the concentration of acetylsalicylic acid. Rearranging the equation and substituting the values we have, we get:

[tex]log([A^-]/[HA]) = pH - pKa[A^-]/[HA] = 10^(pH - pKa) = 10⁽⁷⁻³°⁵⁾ = 316.23[A^-] = 316.23 × 9.24 x 10⁻⁴ = 2.92 x 10⁻⁴ M[/tex]

Finally, the pH of the solution can be calculated from the concentration of acetylsalicylic acid anion:

[tex]pH = -log([A^-]) = -log(2.92 x 10⁻⁴) = 3.54[/tex]

So, the pH of the solution obtained by dissolving two extra-strength aspirin tablets in 270 mL of water is approximately 3.54.

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Note: Vol. = volume. Since the bolt has an irregular shape, find its volume by displacement only.

1. Calculate the volumes of the samples used in Procedure step 2. Record the calculated

volumes in Table 2. 2. Why could we not find the volume of the bolt by this method?

2. How did you find the volume of the PE rod using the displacement method?

Note: 1 cm = 1 mL.

Because PE floats, push the rod under the water with a very small object, such as a

pin, and volume of the pin is negligible and can be ignored.

Answers

The displacement method is the sole way to determine the iron bolt's volume. Aluminium bar volume is 15.52 cm3. The rod's volume is 23.8 cm3.

Describe loudness. The area occupied by an object is referred to as its volume. We are aware that based on the object's characteristics, there are various approaches to determine its volume. If the object is solid, we have two options: we can look at the solid's dimensions or we can use the solid's dimensions. The actual technique we choose to employ is unique to the object whose volume we want to measure. in order to determine the aluminium bar's volume; Volume equals length, width, and height. Volume is equal to 9.7 * 1.6 * 1.0, or 15.52 cm3. in order to determine the rod's volume; Volume equals Area * Length.

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The density of a gas is 0.0892 g/L at STP. What are the molar mass and the identity of the gas?

Urgent!!!

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The density of a gas at Standard Temperature and Pressure (STP) can be used to determine its molar mass. The density of a gas at STP is equal to its molar mass divided by the molar volume, which is 24.45 L/mol for a gas at STP.

So, given the density of the gas as 0.0892 g/L at STP, the molar mass can be calculated as:

molar mass = density * molar volume
= 0.0892 g/L * 24.45 L/mol
= 2.16 g/mol

Unfortunately, this information is not enough to determine the identity of the gas with certainty. The molar mass and density of a gas at STP can be used to identify the gas if it is one of the known gases, such as oxygen, nitrogen, or carbon dioxide, but it is not possible to determine the identity of an unknown gas based solely on its molar mass and density

Andrea's ballpoint pen leak ink, a permanent onto her white blouse. Her friends suggested that she soaked the stain in nail polish remover, in rubbing alcohol or wash the stain in soap or water. Andrea asked you, a good science student which of these suggestions she should try. Plan and design an experiment to identify which solvent is best for removing ink stain from Andrea's blouse

Answers

The most effective in removing ink stains from a white blouse by comparing the degree to which each solvent is able to remove the stain. The solvent that results in the least visible ink stain will be considered the most effective.

A solvent in chemistry is a liquid that is used to dissolve a solute (another substance) to form a solution. The solvent acts as the medium in which the solute is dissolved, allowing it to be dispersed evenly throughout the solution. The choice of solvent can greatly impact the solubility, reactivity, and overall properties of the solution.

There are many types of solvents, including polar and non-polar solvents. Polar solvents have a positive and negative end and are able to dissolve polar compounds. An example of a polar solvent is water. Non-polar solvents, on the other hand, do not have a polar structure and are able to dissolve non-polar compounds. An example of a non-polar solvent is hexane.

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Help with my chemistry work pls. It's confusing

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The mass of oxygen gas that will react with 50 grams of ammonia gas is 57.28 grams.

How to calculate mass stoichiometrically?

Stoichiometry is the quantitative relationship between the reactants and products of a specific reaction or equation.

According to this question, ammonia gas reacts with oxygen gas to produce nitrogen gas and water.

Based on the reaction, 1 mole of ammonia gas reacts with 1 mole of oxygen.

50 gram of ammonia gas is equivalent to 1.79 moles

1.79 moles will react with 1.79 moles of oxygen gas.

mass of oxygen gas = 1.79 moles × 32g/mol = 57.28 grams.

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if magnesium nitrate and sodium hydroxide are reacted together, what is the resultant colorless jelly-like precipitate that forms?

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If magnesium nitrate and sodium hydroxide are reacted together then a white jelly like precipitate is formed.

The reaction between magnesium nitrate and sodium hydroxide produces magnesium hydroxide, a white, jelly-like precipitate:

Mg(NO3)2 + 2NaOH → Mg(OH)2 + 2NaNO3

Magnesium hydroxide is a soft, white, jelly-like solid that is insoluble in water and has a basic nature. It is often used as a neutralizing agent and as an antacid. The reaction between magnesium nitrate and sodium hydroxide is a neutralization reaction, where the strong base sodium hydroxide reacts with the weak acid magnesium nitrate to form a salt (magnesium hydroxide) and a neutral solution of sodium nitrate.

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Match the human activity with how it intensifies the greenhouse effect deforestation burning fossil fuels primary cause of human-created carbon emissions destroys natural carbon sinks leading to more CO₂ in the air emits methane from decomposing waste disposal in lands​

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Deforestation - destroys natural carbon sinks leading to more CO₂ in the air

Burning fossil fuels - primary cause of human-created carbon emissions

Waste disposal in landfills - emits methane from decomposing waste disposal in lands​

Greenhouse effects

Greenhouse effects refer to the effects caused by the greenhouse gases' absorption of solar radiation to raise the temperature of the atmosphere. The greenhouse gases include carbon dioxide, methane, water vapor, etc.

Deforestation destroys forests which serve as carbon dioxide sinks. The burning of fossil fuels leads to the emission of carbon dioxide and waste disposal in landfills is a source of methane gas. All these gases help create the greenhouse effect.

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Match the human activity with how it intensifies the greenhouse effect.

deforestation

burning fossil fuels

waste disposal in landfills

primary cause of human-created

carbon emissions

destroys natural carbon sinks,

leading to more co, in the air

emits methane from decomposing

matter

explain what causes the unique colored lines and colored flames that we observe from various elements

Answers

Flame colors are produced from the movement of the electrons in the metal ions present in the compounds

The greater the speed of gas particles in a container, the:_________

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The greater the speed of gas particles in a container, the higher the pressure of the gas.

This is because the pressure is directly proportional to the kinetic energy of the gas particles, and the kinetic energy of a gas particle is directly proportional to its speed squared. The pressure of a gas is usually expressed as a force per unit area, and can be calculated by multiplying the average kinetic energy of the gas particles by the number of particles per unit volume. Since the kinetic energy of a particle is proportional to the square of its velocity, if we double the velocity of the gas particles, we will see an increase in the average kinetic energy and thus an increase in the pressure. Thus, the greater the speed of gas particles in a container, the higher the pressure of the gas.

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you heat 3.854 g of a mixture of fe3o4 and feo to form 4.148 g fe2o3. the mass percent of feo originally in the mixture was:

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To determine the mass percent of FeO in the original mixture, we need to balance the equation for the reaction that takes place when the mixture is heated. The reaction between Fe3O4 and FeO to form Fe2O3 is as follows:

Fe3O4 + FeO --> Fe2O3

Next, we'll use the law of conservation of mass to balance the equation. According to this law, the total mass of the reactants must equal the total mass of the products.

We'll start by assuming that the number of moles of FeO in the mixture is 1.0. Then, the number of moles of Fe3O4 can be calculated as follows:

4.148 g Fe2O3 / (71.844 g/mol) = 0.058 mol Fe2O3

0.058 mol Fe2O3 / (1 mol FeO / 2 mol Fe2O3) = 0.116 mol FeO

0.116 mol FeO x (55.845 g/mol) = 6.468 g FeO

So, the mass of FeO in the original mixture was 6.468 g and the mass of Fe3O4 was 3.854 g - 6.468 g = -2.614 g.

The mass percent of FeO in the original mixture can be calculated as follows:

(6.468 g FeO / (6.468 g FeO - 2.614 g Fe3O4)) x 100% = 71.12%

So, the mass percent of FeO in the original mixture was 71.12%.

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______contains digestive enzymes to break down harmful substances.

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Liver contains digestive enzymes to break down harmful substances.

Digestive enzymes: Digestive enzymes are a group of enzymes which break down polymeric macromolecules into their smaller building blocks, in order to facilitate their absorption into the cells of the body.

Digestive enzymes are found in the digestive tracts of animals (including humans) as well as in the tracts of carnivorous plants, where they aid in the digestion of food, as well as inside the cells, especially in their lysosomes, where they function to maintain the cellular survival.

Liver: The liver contains various digestive enzymes, such as liver alcohol dehydrogenase, which helps to break down toxic substances such as alcohol and drugs, and convert them into less harmful substances that can be excreted from the body.

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a chemist employed by an airplane manufacturer investigates new adhesives for the purpose of building airplanes without rivets. she is engaged in group of answer choices risk-benefit analysis. alchemy. applied research. basic research.

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A chemist employed by an airplane manufacturer investigates new adhesives for the purpose of building airplanes without rivets. So, she is engaged in applied research.

Research means findings and discoveries. A researcher can carry out either basic research or applied research. Every research topic begins with an explanation of the aim of the investigation, which describes identifying the research method or the strategy used to carry out the research.

Applied research is a non-systematic approach to solving certain difficulties or problems . These concerns or problems may affect a person, a group, or the entire society. It is referred to as "non-systematic" because it directly aim at seeking solutions.

It makes use of the existing scientific instruments to identify solutions. So, it is frequently referred to as a "scientific process".

The three different categories in research are as follows: Action research, Research and Development and evaluation research.

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fluorescent objects absorb light and emit it again at a lower frequency of energy explain why the emitted frequency has to be lower

Answers

The emitted fluorescent light has longer wavelength and lower energy because it lost some energy to the solvent molecules and some fraction of energy is dissipated as heat.

What is fluorescence ?

A material that has absorbed light or other electromagnetic radiation will emit light when it undergoes fluorescence. It has a luminescent quality. Most of the time, the emitted light has a lower photon energy than the absorbed radiation because it has a longer wavelength.

Fluorescence can be seen when the emitted light is in the visible spectrum while the absorbed radiation is in the ultraviolet (UV) region of the electromagnetic spectrum, which is invisible to the human eye.

The fluorescent photons have lower energy. The non-radiative  vibrational transitions taking place in between causes dissipation of energy as heat and some energy is transferred to the solvent molecules.

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a solution is prepared by dissolving 12.30 g of ordinary sugar (sucrose, c12h22o11, 342.3 g/mol) in 35.00 g of water. calculate the boiling point of the solution. sucrose is a nonvolatile nonelectrolyte.

Answers

Boiling point of the solution prepared by dissolving 12.30 g of ordinary sugar (sucrose, c12h22o11, 342.3 g/mol) in 35.00 g of water is 100.5°C.

To calculate the boiling point of the solution, we need to determine the boiling point elevation caused by the addition of sucrose to the water. The boiling point elevation of a solution is proportional to the molality (moles of solute per kilogram of solvent) of the solute.

First, let's calculate the molality of the solution:

12.30 g sucrose / 342.3 g/mol = 0.0359 moles sucrose

35.00 g water / 1000 g/kg = 0.035 kg water

Molality = 0.0359 moles / 0.035 kg = 1.03 mol/kg

Next, we can use the formula for boiling point elevation to calculate the boiling point of the solution:

ΔTb = Kb * molality

where ΔTb is the change in boiling point, Kb is the boiling point elevation constant for water (0.512 K kg/mol), and molality is the molality of the solution.

ΔTb = 0.512 K kg/mol * 1.03 mol/kg = 0.529 K

Finally, we can add the boiling point elevation to the boiling point of pure water (100°C) to obtain the boiling point of the solution:

Boiling point of solution = 100°C + ΔTb = 100°C + 0.529 K = 100.529°C (approximately 100.5°C)

So, the boiling point of the solution is 100.5°C.

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How do colliding air masses create a front?

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When two different air masses collide, their difference in temperature, humidity, and air pressure can create a boundary between them, called a front.

What is an air front?

When two different air masses collide, their difference in temperature, humidity, and air pressure can create a boundary between them, called a front.

This boundary separates the two air masses and often results in significant weather changes, such as precipitation and strong winds, as the denser, cooler air mass displaces the lighter, warmer air mass.

The passage of a front can bring about changes in the weather, as the leading edge of the cooler and denser air replaces the warmer air. The type of front can be characterized by its movement and the temperature changes it brings, and they are classified into four main types:

cold frontwarm frontstationary frontoccluded front.

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please solve this 250cm^3 of hydrogen gas at a temperature of 17°c are at a pressure of 196kpa.calculate the volume of hydrogen if the temperature is raised to 67°c and the pressure is decreased to 80 kpa​

Answers

586cm^3 is the volume of hydrogen if the temperature is raised to 67°c and the pressure is decreased to 80 kpa​.

Which three ideal gas laws are there?

According to Boyle's Law, gas volume grows as pressure lowers. According to Charles' Law, a gas expands in volume as its temperature rises. Additionally, Avogadro's Law states that as gas concentration rises, so does its volume.

The definition of an ideal gas is a gas in which the volume of the molecules and the forces between the molecules are so minimal as to not affect the behavior of the gas.

P1V1/T1 = P2V2/T2

V2 = ?

P1 = 196kPa

V1 = 250cm^3

T1 = 17degree celcius

P2 = 80kPa

T2 = 67 degree celcius

V2 = P1V1T2/T1P2

     = 196*250*67/17*80

     = 586cm^3

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Show your work for the following problems. 3. A gas at a fixed temperature has a volume of 3. 41L. Its pressure is changed from 4. 22atm to 1. 202atm. What is the new volume at constant temperature?​

Answers

By the Help of  Ideal gas laws, The new volume of the gas at a constant temperature when the pressure is changed from 4.22 atm to 1.202 atm is 12.94 L.

The Ideal Gas Law, PV = nRT, which takes P as the pressure, V as the volume, n as the number of moles, R as the gas constant, and T as the temperature, can be used to explain the relationship between pressure, volume, and temperature. If we keep the temperature constant, we can rearrange the equation to solve for the new volume:V1 = (P1 × V2) / P2, where V1 is the new volume and P1 and P2 are the initial and final pressures, respectively. Plugging in the values from the problem, we get:V1 = (4.22 atm × V2) / 1.202 atm = 3.41 L × (4.22 atm / 1.202 atm) = 12.94 LSo the new volume of the gas at a constant temperature when the pressure is changed from 4.22 atm to 1.202 atm is 12.94 L.

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the molality of ammonia, nh3, in an aqueous solution is 22.8 m. what is the mole fraction of ammonia in the solution?

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The molality of ammonia in an aqueous solution is 22.8 M. Then the mole fraction of ammonia in the solution is 0.29.

The mole fraction of a substance expresses the ratio of the number of moles of solute or solvent to the number of moles of solution. Here are the mole fraction formulas for the solute and solute:

Xt = nt / nt + np.

xp = np / nt + np.

NH₃ molality = 22.8 M

This means that if we take 1 kg of H₂O we have 22.8 M NH₃.

Moles of H2O in 1 kg = 1000/18

Mole fraction of NH₃ = Moles NH3/Moles NH3 + Moles H₂O

Mole fraction of NH₃ = 22.8/22.8 + 1000/18

Mole fraction of NH₃ = 22.8/78.35

Mole fraction of NH₃ = 0.29

So, the mole fraction of NH₃ is 0.29.

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How is transport of water a way to preserve the water supply on Earth? Do you consider this a solution?

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All the living organisms need water to survive in the earth. The transport of water can be considered as a solution of water supply on earth. Most of the people suffers from water scarcity.

How can we preserve water?

Water is regarded as the universal solvent and plays an important role in the survival of all living organisms. The preservation of water mainly refers to protect and control the use of water and its associated resources.

It is very important to preserve water. Because everyday the population is increasing and the water resources are reducing. The preservation of water helps us to supply large amount of water for longer usage.

Some methods to preserve water are:

Close the tap when it is not in use.Check the leakage of water through pipesCollect and save rainwaterDo not waste too much water for bathing, washing, cleaning etc.

Water supply means providing water to the public. Here water is supplied through pipes, pumps, etc. To make healthy individuals in our society transport of water is essential.

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