Is the following alkene E, Z, or neither? CH3 CH O E O Neither

Properties of matter, such as mass, classified as an extensive property because the mass of a substance depends on how much of the substance is present. Hence, option C is correct.

An extensive property is defined as a property that depends on the amount of matter in a sample. Mass and volume are the important examples of extensive properties. An intensive property is defined as a property of matter that depends only on the type of matter in a sample and not on the amount.

Extensive properties usually vary with the amount of the substance and include mass, weight, and volume. Intensive properties, basically, do not depend on the amount of the substance; they include color, melting point, boiling point, electrical conductivity, and physical state at a given temperature.

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Lewis electron-dot diagram for a fluoride ion is mentioned below.

What is lewis dot diagram?

Diagrams that show the chemical bonds between the atoms of a molecule are known as Lewis dot structures, also known as electron dot structures. Additionally, they show the total number of lone pairs found in each of the atoms that make up the molecule. Gilbert N. Lewis introduced the Lewis structure in his 1916 article The Atom and the Molecule, and it bears his name.

What is ion ?

Atoms or groups of atoms with an electric charge are referred to as ions. Cations are positive-charged ion particles. Anions are ion types that have a net negative charge. The body contains ions of several common chemicals. Examples that are frequently used are sodium, potassium, calcium, chloride, and bicarbonate.

The fluorine atom forms fluoride, which has 8 valence electrons, and is isoelectronic with a Noble Gas .

:

:F:

 :

Therefore, Lewis electron-dot diagram for a fluoride ion is mentioned above.

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Calculate the concentrations of hydronium and hydroxide ions in pure water at 25°C and 100°C (Kw = 1.00x10-14 and Kw = 49.0x10-14, respectively).

How much of the solute has been incorporated in the solvent is indicated by the concentration of the solution. A concentration of one teaspoon of salt per two cups of water, for instance, would be indicated as 1 t salt per 2 c water.

Within the selected major, a concentration is a focused field of study. Schools don't demand that students declare a specialization, just like minors. Instead, they provide them as academic choices in order to draw students to the department and enable them to personalize their college experience.

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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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A substance that has mass and occupies space is called matter. Matter is considered as a substance that has a mass in it.

It also occupies space or volume. The matter is considered to consist of various types of particles which have different sizes as well as mass in it. The matter has the capability of existing in several ways.

The major types of existence of matter are solid, liquid and gas in which the existence depends upon the temperature or the pressure that surrounds the particulate matter. The matter of its different types can combine with the other substance in order to perform various types of ingredients.

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A) The heat released by the reaction can be calculated by using the equation q = ΔH = -nΔHf, where q is the heat, ΔH is the change in enthalpy, n is the number of moles, and ΔHf is the change in enthalpy of formation.

Since the reaction releases 15,026 kJ of heat per mole of C12H26, we can calculate the amount of heat released by 21.3 g of CO2 produced:

First, we need to find the number of moles of CO2 produced: n = mass / molar mass = 21.3 g / (24 g/mol) = 0.8875 mol.

Next, we can use the number of moles to find the heat released: q = ΔH = -nΔHf = -0.8875 * 15026 kJ/mol = -13038.75 kJ.

B) The amount of C12H26 consumed can be calculated by using the equation q = ΔH = -nΔHf, where q is the heat, ΔH is the change in enthalpy, n is the number of moles, and ΔHf is the change in enthalpy of formation.

Since the reaction releases 15,026 kJ of heat per mole of C12H26, we can calculate the number of moles of C12H26 consumed:

n = q / ΔHf = 500 kJ / 15026 kJ/mol = 0.03308 mol.

Finally, we can use the number of moles to find the mass of C12H26 consumed:

mass = n * molar mass = 0.03308 mol * (12 g/mol + 26 g/mol) = 0.03308 mol * 38 g/mol = 1.25 g.

C) The amount of C12H26 required to generate heat to raise the temperature of 750 g of liquid water can be calculated using the equation q = mCΔT, where q is the heat, m is the mass, C is the specific heat capacity of the water, and ΔT is the change in temperature.

First, we need to find the heat required to raise the temperature of 750 g of liquid water:

q = mCΔT = 750 g * 4.18 J/g°C * (90 - 10)°C = 261300 J.

Next, we can use the equation q = ΔH = -nΔHf, where q is the heat, ΔH is the change in enthalpy, n is the number of moles, and ΔHf is the change in enthalpy of formation, to find the number of moles of C12H26 required:

n = q / ΔHf = 261300 J / 15026 kJ/mol = 17.3 mol.

Finally, we can use the number of moles to find the mass of C12H26 required:

mass = n * molar mass = 17.3 mol * (12 g/mol + 26 g/mol) = 17.3 mol * 38 g/mol = 657 g.

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At a level of 20 degrees Celsius, water has a viscosity of roughly 0.01 point or 10-3 Pa. (Pascal seconds). The resistance of the a liquid to deformation at the a specific rate is measured by its viscosity.

What is the water's viscosity rating?

0.010019 poise

The stiffness of water was measured at 0.010019 poise as opposed to the recognized norm of 0.01005 poise during the previous 30 years.

Is water one viscosity?

At the a temperature of twenty degrees Celsius, water has a viscosity of roughly 0.01 point or 10-3 Pa. (Pascal seconds). The resistance of the a fluid to distortion at the a specific rate is measured by its viscosity.

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One molecule of glucose is created by the calvin cycle using six water and carbon dioxide, 18 molecules bacterial ATP, as well as 12 molecules of NADPH.

Glucose, the main type of sugar found in blood, is the main energy source for bodily cells. Glucose can be produced by our bodies from food or from other substances. The symbolizes the way glucose into the cells. One molecule that controls levels of blood sugar is insulin.

Using water, carbon dioxide, and solar energy, the preponderance of vegetation and algae manufacture glucose, which is then used to build cellulose, the most common carbohydrate in existence, there in cell walls.

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Yes a good hypothesis contradicts prior hypothesis.

Prior hypothesis is defined as a bias a decision-making error in which decision makers rely on strong prior beliefs about the relationship between two variables even when presented with evidence that their beliefs are wrong.

Good hypotheses are also known as testable hypotheses. This means that one can actually carry out the intent of the question reflected by the hypothesis. For example, let's consider number of hours of parental reading and outcome scores as measured by a test of comprehension are all objective and can be incorporated reliably.

Hence, a a good hypothesis contradicts prior hypothesis.

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The five phases of the SQ3R critical reading approach are survey, question, read, repeat, and revise.

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.

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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The molecular compounds are composed of the two or more non metals.

The molecular compound are generally composed of the two or more non metal elements. The Molecular compounds are named as  the first element comes first and then the second element comes second by using the element name plus the use of suffix - ide. The molecular compound formed by the equal sharing of the valence electrons between the atoms .

The Molecular compounds are the chemical compounds that are the form of the different molecules. The examples of the molecular compounds are water (H₂O) and the carbon dioxide (CO₂).

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The solution is Fe2O3, which has a molar mass of 159.69 g/mol.

Fe2O3—is it rust?

Acids can easily attack Fe2O3. Because it has many of the same qualities and a similar composition to rust, iron(III) oxide is frequently referred to as rust. However, in chemistry, rust is classified as hydrous ferric oxide and is not well understood.

Why is ferric Fe2O3 called that?

Iron(III) oxide, which contains three oxygen atoms and two iron atoms, has the chemical formula Fe2O3. Fe2O3 is in a +3 oxidation state. The differential in electronegativity between oxygen and iron is what determines whether a bond will form between the two atoms. While oxygen (O2) is a non-metal, iron (Fe) is a metal.

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A solution is a homogeneous mixture of one or more solutes dissolved in a solvent.

Solutes are substances dissolved in solvents. If the solvent particles attract more than the solute particles, they pull them apart and surround them. These particles leave the solid solute and enter the solution. During solution mixing, chemical polarity causes solvation-specific interactions.

When the solvent constitutes the majority of the combination, the solution usually has the solvent's condition. The concentration of a solution is a key parameter. Aqueous solutions contain water as a solvent. Solutes will not precipitate unless added in excess of the mixture's solubility, which causes hyper saturation.

The complete question is.

What is a homogeneous mixture of one or more solutes dissolved in a solvent​?

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The concentration of a 180 mosm nacl solution in terms of its osmotic pressure is:0.154 g/L.

Concentration (g/L) = Osmotic Pressure (mosm/L) / (Van't Hoff factor * R * T)

Where R is the gas constant (8.31 J/mol K), T is the temperature in Kelvin (273.15 + °C), and Van't Hoff factor is the number of particles that a solute molecule dissociates into in solution (for NaCl, it is 2).

So, the concentration of a 180 mosm NaCl solution can be calculated as follows:

Concentration (g/L) = 180 mosm / (2 * 8.31 J/mol K * (273.15 + 25) K)

Concentration (g/L) = 180 mosm / (2 * 8.31 J/mol K * 298.15 K)

Concentration (g/L) ≈ 0.154 g/L.

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Answer:

A Combustibility

A) The carbon-carbon triple bond in C2H2 (ethyne or acetylene) results in the shortest carbon-carbon bond length. acetylene and HCCH.

The shortest C-to-C bond is found in the triple-bonded compound ethyne. Triple bonds are shorter than single bonds, whereas the other molecules only have single C-to-C bonds.

This is due to the fact that higher s character means that the electrons in bound pairs are tightly kept together, making the bond length short and strong. C 2 H 6 is hybridizing.

Two carbon atoms in acetylene are joined together by a triple bond. This is how its structure is displayed.

H-C=C-H

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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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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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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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Gasoline combustion in a car engine generates heat and light by reacting with oxygen, which propels the vehicle.

A fuel and an oxidizer undergo a chemical reaction known as combustion to create heat and light. The majority of these reactions are exothermic, which means that heat and light are released as forms of energy.

In class 10, some illustrations of combustion reactions are:

 Burning wood or paper produces heat, light, and carbon dioxide when combined with oxygen.

 Fossil fuels are burned in order to produce heat and light when combined with oxygen.

 When used for cooking or heating, propane gas combines with oxygen to produce heat and light when burned in a stove.

  Magnesium burns when combined with oxygen, creating a bright white flame that emits energy in the form of heat and light.

These are only a few real-world instances of combustion reactions. To be able to manage and prevent the negative impacts of fire, it is crucial to comprehend the fundamental concepts behind combustion processes.

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Answer:1.75 atm = 1750 kPa

1.75 atm = 1327.5 mmHg

Explanation:

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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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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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.

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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Generally, atoms are made of extremely tiny particles called protons, neutrons, and electrons. Protons and neutrons are present in the center of the atom, making up the nucleus and electrons surround the nucleus.

An electron is defined as a negatively charged subatomic particle that can be either bound to an atom or free (not bound). An electron which is bound to an atom is one of the three primary types of particles within the atom, the other two are protons and neutrons.

A neutron is defined as a subatomic particle found in the nucleus of every atom except that of simple hydrogen. The name of neutron is derived from the fact that it has no electrical charge; it is neutral. Neutrons are basically extremely dense.

Proton is defined as a small, positively charged particle of matter found in the atoms of all elements. Streams of protons which are generated by special equipment can be used for radiation treatment.

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CO₂  is the formula of the compound forming the reaction when someone reacts oxygen with carbon.

Combustion is the chemical reaction that occurs when a substance reacts with oxygen to produce heat. Ethane, wood, and propane are a few examples.

Combustion systems use the energy released by chemical compounds during this reactive process to power vehicles, generate electricity, and provide heat for a variety of applications.

A combustion is another type of combination reaction in which something combines with oxygen and produces heat and light.

Thus, The reaction between carbon and oxygen can be represented as follows:

C(s) + O2 (g) → CO2 (g) + heat.

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Neutral atoms have the same number of protons as electrons, electrons surround the nucleus, the nucleus is composed of protons and neutrons, protons are positively charged, and gaining or losing protons produces different ions.

An isotope is a variation of an element that has a different number of neutrons but the same number of protons. This means that isotopes of an element have the same atomic number, but a different atomic mass due to the difference in neutrons. For example, carbon-12 and carbon-14 are two isotopes of carbon, with the former having 6 neutrons and the latter having 8 neutrons. This distinction of isotopes allows for the study of different atomic structures and their properties.

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The answers include the following:

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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Mass conversion from grams to kilograms

In physics and chemistry, it is common to express the mass of an object in grams (g) or kilograms (kg). To convert from grams to kilograms, we divide the mass in grams by 1000. This conversion allows us to express larger masses in a more manageable unit.

For example, in this case, the mass of a 250 ml beaker is 95.4 g. To convert this to kilograms, we divide 95.4 by 1000:

95.4 g / 1000 = 0.0954 kg

Therefore, the mass of the 250 ml beaker is 0.0954 kilograms.

It's important to note that the conversion factor between grams and kilograms is constant and equal to 1000. This means that regardless of the mass, the conversion will always result in the same factor of 1000.

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The molarity to make a 100 ml solution by dissolving 5g of a solid solute is 0.45 M. It can be calculated by using molarity formula.

Molarity is the concentration of a solution in terms of moles of solute per liter of solution. It is denoted by the unit "M" (moles per liter).

The molarity of a solution can be calculated as the number of moles of solute divided by the volume of the solution in liters.

First, we need to determine the number of moles of solute:

5g / 110 g/mol = 0.045 moles

Next, we need to convert the volume of the solution from milliliters to liters:

100 ml * (1 L / 1000 ml) = 0.1 L

Finally, we can calculate the molarity:

0.045 moles / 0.1 L = 0.45 M

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