During cellular respiration, ATP is created when glucose and oxygen combine. As byproducts, carbon dioxide and water are emitted.
Does cellular respiration produce oxygen as a byproduct?Water and carbon dioxide are changed into oxygen and sugar during photosynthesis. The plant consumes glucose and produces oxygen as a byproduct. Oxygen and glucose are transformed into carbon dioxide and water during cellular respiration. By-products of the process include carbon dioxide, water, and ATP, which is turned into energy.
With two ATP, what phase of cellular respiration is finished?Stage II of cell respiration is where these two molecules proceed. Two ATP molecules supply the necessary energy for the splitting of glucose. Energy is released during glycolysis, and this energy is then utilised to create four molecules.
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Using the conversation factor of 12 eggs=1 doz, how many doz eggs are in 456 eggs
Which component is missing from the process of photosynthesis?
Carbon Dioxide + Water + Sunlight → _________ + Oxygen
Light Energy
Glucose
Plants
Carbon
During photosynthesis, water and carbon dioxide become glucose and oxygen.
True
False
What evidence supports a conservation law?
Energy from sunlight becomes glucose during photosynthesis.
Carbon dioxide becomes glucose and oxygen during photosynthesis.
Hydrogen is made from the breakdown of carbon dioxide during photosynthesis.
Glucose and oxygen become carbon dioxide and water during photosynthesis.
Answer: The component that is missing from the process of photosynthesis is glucose. The correct option is B.
Explanation:
Why is photosynthesis?
Additionally, almost all the oxygen in the atmosphere is due to the process of photosynthesis. If photosynthesis ceased, there would soon be little food or other organic matter on Earth, most organisms would disappear, and Earth's atmosphere would eventually become nearly devoid of gaseous oxygen.
Photosynthesis is the process by which plants and other things make food. It is an endothermic (takes in heat) chemical process that uses sunlight to turn carbon dioxide into sugars that the cell can use as energy. As well as plants, many kinds of algae, protists and bacteria use it to get food
The main purpose of photosynthesis is to transform solar energy into chemical energy, which is then stored for later use. This mechanism primarily provides energy to the planet's life systems.
Therefore, the correct option is B, Glucose.
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An aqueous kno3 solution is made using 60. 1 g of kno3 diluted to a total solution volume of 1. 96 l. (assume a density of 1. 05 g/ml for the solution. ).
The molar concentration of the aqueous KNO3 solution is 0.304 M.
To find the molar concentration of the aqueous KNO3 solution, we have to find the no. of moles of KNO3 in the given solution.
The number of moles of KNO3 can be calculated by using the formula:
moles = mass / molar mass
where the molar mass of KNO3 = 101.1 g/mol. So,
moles = 60.1 g / 101.1 g/mol = 0.595 mol
Now, we can use the no. of moles of KNO3 and the volume of the solution to calculate the molar concentration of the solution.
The molar concentration, or molarity, is defined as the number of moles of solute per liter of solution. We can use the formula:
molarity = moles/liters
So,
molarity = 0.595 mol / 1.96 L = 0.304 M
The molar concentration of the aqueous KNO3 solution is 0.304 M.
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what is the difference between a substance ""getting wet"" and ""being dissolved"" in a liquid at the particulate leve
The difference between a substance ""getting wet"" and ""being dissolved" is that when it gets wet it means it is being coated with liquid whereas being dissolved means that it is dispersed in liquid.
When a substance "gets wet," it means that the surface of the substance is being coated with a liquid, but the substance itself is not changing its chemical composition or dissolving in the liquid. The substance remains intact and separate from the liquid, much like a solid piece of food might become wet when it is immersed in water.
When a substance "is dissolved" in a liquid, it means that the substance has broken down into individual particles and has become evenly dispersed throughout the liquid.
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Classify each property as intensive or extensive. a. volume b. boiling point c. temperature d. electrical conductivity e. energy
The intensive and extensive properties are classified are mentioned below.
What is intensive property?
Pressure, density, temperature, viscosity, surface tension, refractive index, electromagnetic field, chemical potential, and specific surface tension are examples of intense qualities that are independent of the quantity of substance (or substances) present in the system.
What is extensive property?
A physical quantity's value is inversely correlated with the size of the system it describes or the amount of matter present. For instance, a sample's mass, which depends on the substance's amount, is a significant quantity.
Large-scale properties include volume and energy. Intensive qualities are unrelated to substance concentration. Intensive features include temperature, electrical conductivity, and boiling point.
Therefore, intensive and extensive properties are classified are mentioned above.
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convert a pressure of 1.75 atm to kPa and to mmHg
Answer:1.75 atm = 1750 kPa
1.75 atm = 1327.5 mmHg
Explanation:
Which steps are involved in the SQ3R method of study?
The five phases of the SQ3R critical reading approach are survey, question, read, repeat, and revise.
What does a scientific method involve?Through testing and experiment, the scientific method establishes facts in an unbiased manner. Making a observation, formulating a theory, making a prediction carrying out a test, and then evaluating the outcomes are the important prerequisites.
What are the many kinds of methods?A procedure is a section of code that only executes when requested. Data can be sent into a method as variables. Methods, commonly referred to as functions, are used to accomplish specific activities. Why employ techniques? Code may be used by defining it only once and then utilizing it repeatedly.
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12. Which of the following statements about energy is true?
a. Energy cannot change from one form to another
b. Energy can be created and destroyed
C. Energy flows in one direction through the system
Explain why the answer is correct and why the answer when energy changes form all of it is converted into heat is incorrect
The following statements about energy which is true is that it flows in one direction through the system and is therefore denoted as option C.
What is Energy?This is referred to as the ability and strength to do active physical things and the feeling that you are full of physical power and life and the unit is in Joules.
Energy is passed from one trophic level to the next trophic level hence it flows in one direction through successive trophic levels in a food chain through nutrients available. Since there is 100 percent efficiency in energy conversion, some are lost as heat and is therefore the reason why it was chosen as the correct choice.
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When a student adds 30.0 mL of 1.00 M HCl to 0.56 g of powdered Fe, a reaction occurs according to the equation above. When the reaction is complete at 273 K and 1.0 atm, which of the following is true?
The true statement is "HCl is in excess, and 0.100 mol of HCl remains unreacted" Therefore, option A is correct.
Given:
Molar mass of Fe = 55.85 g/mol
Mass of Fe = 0.56 g
Moles of Fe = Mass of Fe / Molar mass of Fe
Moles of Fe = 0.56 g / 55.85 g/mol
Moles of Fe ≈ 0.01 mol
According to the balanced equation, the mole ratio between Fe and HCl is 1:2. This means that for every 1 mole of Fe, 2 moles of HCl are required.
Therefore, the moles of HCl required to react completely with the given amount of Fe are:
Moles of HCl = 2 × Moles of Fe
Moles of HCl = 2 × 0.01 mol
Moles of HCl = 0.02 mol
Volume of HCl solution = 30.0 mL = 30.0 mL × (1 L / 1000 mL) = 0.0300 L
Molarity of HCl = 1.00 M
Moles of HCl = Molarity × Volume
Moles of HCl = 1.00 M × 0.0300 L
Moles of HCl = 0.0300 mol
Since the moles of HCl required to react completely with Fe are 0.02 mol and the initial moles of HCl present are 0.0300 mol, we can see that HCl is in excess.
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Your uestion is incomplete,complete question is:
Fe(s) + 2HCl(aq) ⇒ FeCl₂(aq) + H2(g)
When a student adds 30.0 mL of 1.00 M HCl to 0.56 g of powdered Fe, a reaction occurs according to the equation above. When the reaction is complete at 273 K and 1.0 atm, which of the following is true?
A) HCl is in excess, and 0.100 mol of HCl remains unreacted.
D) 0.22 L of H2 has been produced.
The correct answer is D. I can't figure out why A is wrong.
suppose you are performing a titration. at the beginning of the titration, you read the titrant volume as 2.20 ml. after running the titration and reaching the endpoint, you read the titrant volume as 22.13 ml. what volume, in ml, of titrant was required for the titration? type answer:
Suppose you are performing a titration, at the beginning of the titration, you read the titrant volume as 2.20 ml. after running the titration and reaching the endpoint, you read the titrant volume as 22.13 ml. The volume, in ml, of titrant was required for the titration is,
Final burette reading - initial burette reading
22.13 - 2.20
19.93ml
therefore the total volume of titrant required for the titration is 19.93ml.
To read the burette, you must be positioned so that your eyes are level with the meniscus's (a curved liquid surface). A parallax error will occur if you read from either above or below the meniscus. Keep a dark piece of paper behind the buret so you can better read the meniscus there.
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Which compound can be prepared by radical halogenation with minimal complications due to the formation of isomeric by-products?
The formation of isomeric by-products during radical halogenation can be a major issue, as it can lead to the production of impure or unwanted compounds.
To minimize the formation of these by-products, it is important to choose the right conditions for the reaction. Factors such as the stability of the radicals involved, the reactivity of the halogen, and the solvent used can all impact the formation of by-products. By selecting a compound with a simple structure and well-defined radicals, and by using a solvent that can stabilize the radicals and control the reaction rate, it is possible to minimize the formation of isomeric by-products. However, the best approach will depend on the specific conditions of the reaction and the desired outcome.
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a student wishes to determine the concentration of ag in a solution of agno3. the student combines 10 ml of agno3 with excess na2so4
The student's plan to determine the concentration of Ag in a solution of AgNO3 by combining 10 ml of AgNO3 with excess Na2SO4 is an example of a precipitation reaction.
In a precipitation reaction, two solutions are mixed together and an insoluble solid (precipitate) is formed, which can then be filtered and weighed to determine the amount of the precipitated species.
The reaction between AgNO3 and Na2SO4 can be written as follows:
AgNO3 + Na2SO4 → Ag2SO4 (precipitate) + 2 NaNO3 (dissolved)
The student would then filter the mixture to remove the precipitate, and weigh the precipitate to determine the amount of Ag2SO4 that was formed. The concentration of Ag in the solution can then be calculated using the stoichiometry of the reaction.
It is important to note that this method assumes that the precipitation reaction goes to completion, and that the Ag2SO4 precipitate does not dissolve in the solution. In practice, this may not always be the case, and it may be necessary to perform additional steps, such as adjusting the pH of the solution or adding a soluble salt, to ensure that the precipitation reaction goes to completion.
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Match the word on the left to the correct definition or statement on the right.
1. Ionic bond a. two atoms share electrons unequally
2. Nonpolar covalent bond b. two polar molecules are attracted to each other
3. Polar covalent bond c. two atoms share electrons equally
4. Hydrogen bond d. two ions are attracted to each other
1. An ionic bond is a bond in which (d) two ions are attracted to each other, because one atom has gained an electron and one has lost an electron, creating oppositely-charged ions.
2. A nonpolar covalent bond is a bond in which (c) two atoms share electrons equally, such that the atoms involved have no charge.
3. A polar covalent bond is a bond in which (a) two atoms share electrons unequally because one atom is holding the shared electrons closer to its own nucleus, creating a slight electronegative and electropositive charge on the atoms involved.
4. A hydrogen bond is a bond in which (b) two polar molecules are attracted to each other because one is slightly electropositive and one is slightly electronegative.
What is the correct definition of an ionic bond?
An ionic bond is formed by the complete transfer of some electrons from one atom to another. The atom losing one or more electrons becomes a cation—a positively charged ion. The atom gaining one or more electrons becomes an anion—a negatively charged ion.
What is Non-polar Covalent Bond?
A non-polar covalent bond is a type of chemical bond that is formed when electrons are shared equally between two atoms. Thus, in an atom, the number of electrons shared by the adjacent atoms will be the same.
What is a polar covalent bond?
A bond formed between two atoms with a difference in electronegativities by sharing electrons is called a polar covalent bond.
What is a hydrogen bond?
Molecules that contain a hydrogen atom bound with fluorine, oxygen, or nitrogen are considered examples that show the hydrogen bonding process.
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how to find the base dissociation constant for nickel hydroxide
The base dissociation constant ([tex]K_b[/tex]) for nickel hydroxide can be found through titration.
This would involve adding a strong acid, such as hydrochloric acid, to a solution of nickel hydroxide until the reaction reaches neutralization.
You would then measure the concentration of hydroxide ions (OH-) in the solution at various points throughout the titration. By using the data obtained from the titration, you can then calculate the Kb of nickel hydroxide using the equation: Kb = [[tex]OH^-[/tex]]²/[Ni(OH)₂].
You would need to repeat the experiment multiple times to obtain an average value for [tex]K_b[/tex] and to ensure accuracy. This value would give you an indication of the strength of the nickel hydroxide as a base.
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Draw a Lewis structure for a compound with molecular formula C_4H_11N in which three of the carbon atoms are bonded to the nitrogen atom. What is the geometry of the nitrogen atom in this compound? Does this compound exhibit a molecular dipole moment? If so, indicate the direction of the dipole moment.
Three single bonds and one lonely pair of electrons connect the central nitrogen atom in C4H11N to the three carbon atoms. As a result, the nitrogen atom is in the sp3 hybridization state.
The nitrogen atom has a trigonal pyramidal shape as a result. The positioning of the molecule's bond dipoles affects the molecular dipole moment. One lone pair of electrons and three single bonds between the core nitrogen atom and the three carbon atoms make up C4H11N. The nitrogen atom ends up in the sp3 hybridization state as a result. The molecule has a non-zero dipole moment with the positive end facing the bond pairs and the negative end facing the lone pair when it has a lone pair and three bond pairs in a trigonal pyramidal shape. The lone pair repels the bond pairs more than the bond pairs repel one another.
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Why is there a decrease in electron affinity going from lithium to sodium?A. There is a stronger nuclear charge, with no additional shielding electrons or number of shells.B. There are fewer spaces in the valence shell in which to place the added electron.C. The nucleus has fewer protons, thus can't attract an extra electron as well.D. Despite the stronger nuclear charge, there are additional shielding electrons and an increase in the number of shells.E. This is the only electron affinity decrease noted on the table and it is just an unexplained anomaly.
Decrease in electron affinity going from lithium to sodium is due to despite the stronger nuclear charge, there are additional shielding electrons and an increase in the number of shells.
Electron affinity is termed as the change in energy (in kJ/mole) of the neutral atom (in the gaseous phase) when an electron will be added to the atom to form a negative ion.
Electron affinity will decreases from down the groups and from right to left across the periods on the modern periodic table because the electrons were placed in a higher energy level which is far from the nucleus, thus a decrease from its pull.
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when should you start a new chemical waste container in the lab? select one: when you accidentally spill chemicals down the side of the current container when you need to dispose of another chemical that is compatible with chemicals in the current container when the contents of the current container are a couple inches below the brim of the container when the contents of the current container completely fill the container to the brim
A new chemical waste container should be started when the contents of the current container completely fill the container to the brim.
Starting a new chemical waste container in the laboratory should be done when the contents of the current container completely fill the container to the brim. This is a standard laboratory practice to ensure the proper segregation and containment of different types of waste. Mixing different chemicals in the same container can be dangerous and create hazardous chemical reactions.
Additionally, overfilling a container can cause it to spill or overflow, which could lead to exposure or contamination. It is also important to properly label each container to ensure the proper disposal and handling of the waste.
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Do you use parentheses on a polyatomic ion when you only have one of them?
Responses
A nono
B yesyes
C sometimessometimes
the pka of ascorbic acid is 4.2. at what ph is the ratio of the unprotonated to protonated forms of ascorbic
The pH at which the ratio of unprotonated to protonated forms of ascorbic acid is equal is at a pH of approximately 4.2. At this pH, half of the ascorbic acid molecules are in their unprotonated form (ascorbate,[tex]C_6H_8O_6[/tex]), while the other half are in their protonated form (ascorbic acid, [tex]C_6H_7O_6H[/tex]).
What is pH
pH stands for "potential of hydrogen." It is a measure of the acidity or basicity of a solution and is defined as the negative logarithm of the concentration of hydrogen ions (H+) in a solution. The pH scale ranges from 0 to 14, with 7 being neutral, less than 7 being acidic, and greater than 7 being basic or alkaline.
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for 2.075 g of khp, how many milliliters of 0.3 m sodium hydroxide is needed to reach the endpoint of the titration
To reach the endpoint of the titration for 2.075 g of KHP, you would need approximately 34.15 mL of 0.3 M sodium hydroxide (NaOH).
This is necessary in order to neutralize the acid in the KHP and reach the endpoint of the titration. When the endpoint is reached, the solution will have a neutral pH. The amount of sodium hydroxide needed to reach the endpoint can be determined by using the molar mass of KHP and the molarity of the sodium hydroxide solution.
The molar mass of KHP is 204.2 g/mol, and the molarity of the sodium hydroxide solution is 0.3 M. Using these values, we can calculate that 34.15 mL of 0.3 M sodium hydroxide is needed to reach the endpoint of the titration for 2.075 g of KHP.
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tophat what main hazard does ethanol, hexanol, and kerosene pose in this experiment?
The main hazard posed by ethanol, hexanol, and kerosene in a "tophat" experiment is flammability.
Ethanol, hexanol, and kerosene are all flammable liquids that can easily ignite and cause fires if tophat they come into contact with a source of ignition such as a flame, spark, or heat source. Additionally, exposure to these liquids can cause skin irritation, eye damage, and respiratory irritation if they are inhaled. In tophat, It is important to handle these flammable chemicals with care, following proper safety protocols and wearing appropriate protective equipment to minimize the risk of fire or injury. So In a "tophat" experiment, the principal danger presented by ethanol, hexanol, and kerosene is flammability.
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The speed of light is about 3.0 x 10^8 m/s. Red light has a wavelength of about 6.5 × 10^-7 m. What is its frequency?
The frequency of the red wave with a wavelength of 6.5 × 10-⁷m is 4.62 × 10¹⁴ Hz.
How to calculate frequency?Wavelength refers the length of a single cycle of a wave, as measured by the distance between one peak or trough of a wave and the next.
The wavelength is often designated in physics as λ, and corresponds to the velocity of the wave divided by its frequency.
According to this question, the speed of light is about 3.0 x 10⁸ m/s. Red light has a wavelength of about 6.5 × 10-⁷ m.
6.5 × 10-⁷ = 3 × 10⁸ ÷ f
f = 3 × 10⁸ ÷ 6.5 × 10-⁷
f = 4.62 × 10¹⁴ Hz
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254. A gas cylinder contains 0.722m³ of hydrogen gas at a pressure of 10.6 atm. If the
gas is used to fill a balloon at a pressure of 0.96 atm, what is the volume in m³ of the
filled balloon?
Answer:
2928281m² gas is used to fill a balloon at a pressure of 0.96 atm, what is the volume in m³ of the
filled balloon
is the standard enthalpy of combustion of glucose likely to be higher or lower at blood temperature than at 25°c?
The standard enthalpy of combustion of the glucose likely to be the higher at blood temperature than at 25 °C. The value of the enthalpy at normal temperature is - 2803 kJ.
The combustion of the glucose is as follows :
C₆H₁₂O₆ + 6O₂ ----> 6CO₂ + 6H₂O
The standard enthalpy = ∑ product - ∑ reactant
The standard enthalpy =( 6(-393.5) + 6(-285.8) - (-1273))
The standard enthalpy = - 2803 kJ
The change in the enthalpy of the system is when one mole of the substance is completely burnt in the presence of the oxygen or the air at given temperature is known as the enthalpy of combustion.
The standard enthalpy of combustion at blood temperature is higher than the normal temperature.
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if such an isotope existed, which one would be best to use for establishing the age of an archeological site that is about 50,000 years old?
The most reliable isotope to use to determine the age of an archaeological site that is about 50,000 years old is carbon-14.
A radioactive isotope of carbon with a half-life of roughly 5,700 years, carbon-14 decays over time. This makes it the perfect option for dating artifacts that are older than 50,000 years. Radiocarbon dating is the process of using carbon-14 to establish an archaeological site's age. The process entails calculating the amount of carbon-14 that is still present in a sample and comparing it to the amount that was initially present when the sample was alive.
The rate of carbon-14 decay can then be used to determine the sample's age. For dating archaeological materials like bones, teeth, charcoal, and wood, this technique has been used extensively.
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ind a solution to . if necessary, use to denote an arbitrary constant. xy 2x 3y 6
According to the question denote an arbitary constant is xy - xy + 2x - 3y = 6 ,xy - 2x + 3y = 6 .
What is the arbitary ?Arbitrary is a term used to describe something that is based on personal opinion, preference or whim, rather than any reason or system. It is usually used to describe decisions, rules or criteria that are subjective, rather than objective, and cannot be justified. For example, an arbitrary decision might be to select a winner for a competition based on their clothing rather than their skills. It can also refer to a number that is randomly selected, with no link to any existing system or pattern.
Subtract xy from both sides: -2x + 3y = 6 - xy
Divide both sides by -2: y = -(x/2) + (6 - xy)/2
Therefore, y = -(x/2) + (6 - xy)/2, where is an arbitrary constant.
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Classify the following reaction: when dissolved sodium chloride reacts with dissolved silver nitrate in water, aqueous sodium nitrate and solid silver chloride are made.
When dissolved sodium chloride reacts with dissolved silver nitrate in water, aqueous sodium nitrate and solid silver chloride are made. This is an illustration of double displacement reaction.
A type of chemical reaction known as a twofold displacement reaction sees the reactant ions swap positions to create new products.
Precipitate production frequently follows a double displacement process.
Covalent or ionic bonds may be present in the chemical reactions between the reactants.
While technically the bonds generated between the chemical species may be either ionic or covalent in nature, the reaction most frequently happens between ionic compounds. In double displacement processes, acids and bases also take part. The same kind of bonds that are present in the reactant molecules are also generated in the result compounds. For this kind of reaction, water often serves as the solvent.
Silver nitrate and sodium chloride react in a double displacement process. In exchange for the sodium's chloride ion, the silver gives up its nitrite ion, which causes the sodium to take on the nitrate anion.
AgNO₃ + NaCl → AgCl + NaNO₃
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place the steps required to determine whether or not a precipitate forms when two solutions are mixed in the correct order. start with the first step at the top of the list.
The steps in the right order to determine whether or not a precipitate form when two solutions are mixed are given below:
1.) note the ions present in the reactants2.) consider possible cation-anion combinations3.) use the solubility rules to determine whether or not either of the combinations gives an insoluble saltWhat are Solubility Rules?There are three outcomes that can happen depending on a solute's solubility:
1) A solution is said to be diluted if the amount of solute in it is less than its solubility, or
2. maximum amount at which it can dissolve, and saturated if the solute content exactly equals its solubility.
Hence, the proper steps are given above,
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place the steps required to determine whether or not a precipitate forms when two solutions are mixed in the correct order.
-consider possible cation-anion combinations
-note the ions present in the reactions
-use the solubility rules to determine whether or not either of the combinations gives an insoluble salt
1. Describe some of the general patterns you observe for temperature and salinity.
Salinity:
Temperature:
2. Describe the location of at least three places in the world's oceans that have high temperatures but low salinity.
Location 1:
Location 2:
Location 3:
The answers include the following:
Some of the general patterns you observe for temperature is the temperature of a place on the Earth is largely dependent upon how strong the Sun is and salinity is that the higher the evaporation rate, the higher the salinity. The location of at least three places in the world's oceans that have high temperatures but low salinity include:Pacific Ocean, Indian Ocean and Mid-Atlantic.What is Salinity?This is also known as saltiness and it is referred to as the amount of salt dissolved in a body of water.
The higher the evaporation rate, the higher the salinity as a result of the evaporation of water which increase the concentration of salt.
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what volume of 0.150 molar hcl is required to neutralize 25.0ml of 0.120 ba(oh)2
Answer: 40 mL
Explanation:
(25/1000) * 120 (2) = 0.0060 Mol of OH- so it needs .0060 mol of H+
.0060 mol/(.150 mol/liter) = .040 Liters
.040 * 100 = 40 mL
The volume of 0.150 molar HCl is required to neutralize 25.0ml of 0.120 Ba(OB)₂ is 0.04 M.
The balanced chemical equation is as :
2 HCl + Ba(OH)₂ → BaCl₂ + 2 H₂O
The molarity of the Ba(OH)₂ = 0.120 M
The volume of Ba(OH)₂ = 25 mL
The moles of the Ba(OH)₂ = 0.120 × 0.025
= 0.003 mol
The 1 mole of the Ba(OH)₂ reacts with the 2 mole of the HCl
The moles of the HCl = 2 × 0.003
= 0.006 mol
The volume of the HCl = moles / molarity
The volume of the HCl = 0.006 / 0.150
= 0.04 M
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