Describe the motion of the atoms of a substance as it changes from a solid to a liquid. use complete sentences to explain the following concepts in your written response: what is the change in particle speed?

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Related Questions

Which of these take place during a chemical change
A substance has a mass of 360 g and a volume of 7.5 cm3. What is its density?a. 2700 g/cm3 c. 480 g/cm3 b. 270 g/cm3 d. 48 g/cm3
There are about 1 760 000 000 000 000 000 000 molecules of sucrose in 1 g of table sugar. Expressed in scientific notation, what is the number of molecules in 1 g of sugar? A) 1.76 x 10-22 B) 1.76 x 10-20 C) 1.76 x 1021 D) 1.76 x 1022
When an atom of the unstable isotope Na-24 decays, it becomes an atom of Mg-24 because the Na-24 atom spontaneously releases:(1) an alpha particle (2) a beta particle (3) a neutron(4) a positron
If a catalyst is used in a reaction:a. the energy of activation increases. b. the reaction rate does not change. c. the reaction rate increases. d. the equilibrium shifts.

Which layer of the Basement Membrane of epithelial tissues is produced and secreted by cells of the underlying connective tissue? (a) Reticular Lamina (b) Lamellar Lamina (c) Papillary Lamina (d) Basal Lamina

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(a) Reticular Lamina

The layer of the basement membrane of epithelial tissues that is produced and secreted by cells of the underlying connective tissue is (a) Reticular Lamina.

The basement membrane is composed of two layers: the basal lamina, which is produced by the epithelial cells themselves, and the reticular lamina, which is produced and secreted by cells of the underlying connective tissue. These two layers together provide structural support and help anchor the epithelial tissue to the underlying connective tissue.

The addition of a catalyst in a chemical reaction (A) increases the concentration of products at equilibrium.
(B) increases the fraction of reactant molecules with a given kinetic energy.
(C) provides an alternate path with a different activation energy.
(D) lowers the enthalpy change in the overall reaction

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the addition of catalyst in a chemical reaction has 2 functions
1. if you add negative catalyst then the rate of chemical reaction decreases
2. if you add positive catalyst then the rate of chemical reaction increases.

Contains elements in the solid, liquid, and gas phase a. alkali metals
b. alkaline earth metals
c. transition metals
d. halogens
e. noble or inert gases

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Halogens. Florine and Chlorine are gaseous, Bromine is liquid and Iodine is solid.

What is the vapor pressure of carbon disulfide at its normal boiling point?

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Carbon disulfide has a vapor pressure of 363 torr at 25 °C and a normal boiling point of 46.3 °C.

What is Vapor pressure?

Vapor pressure or equilibrium vapor pressure is the pressure exerted by a vapor in thermodynamic equilibrium with its condensed phases at a given temperature in a closed system. It is an indication of the thermodynamic tendency of a liquid to evaporate.

It is the pressure at which a liquid and its vapor are in equilibrium at a given temperature where the vapor is said to "push" against the atmosphere, so the higher the vapor pressure the faster the liquid evaporates.

The vapor pressure is different for different compounds like for Carbon disulfide the vapor pressure is 363 torr at 25 °C.

Thus, Carbon disulfide has a vapor pressure of 363 torr at 25 °C and a normal boiling point of 46.3 °C.

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I am not so sure, but based on what I'm seeing on the periodic table, the answer should be 3,827 degrees Celsius.

Find three acids and three bases used in your home.1) what are theses acids and bases used for?
2)look up the chemical name and chemical formula of each acid and base

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Acids

Acetic acid in vinegar, used in cooking - CH₃COOH
Citric acid in lemons and oranges - C₆H₈O₇
Carbonic Acid in soft drinks - H₂CO₃

Bases

Sodium Hypochlorite is found in bleach - NaClO
Sodium Hydroxide found in drain cleaners - NaOH
Sodium bicarbonate, also known as baking soda which is used in cooking - NaHCO₃

"Enzymes help to achieve the equilibrium faster but cannot changethe thermodynamic
equilibrium constant. Why?"

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Equilibrium constant Kc is defined as the concentration of products over reactants raised to the the powers of its respective molar ratios in of the balanced chemical reaction.
A catalyst by definition is a compound able to catalyse a reaction while being chemically unchanged in the process. The catalyst works by lowering the activation energy by providing an alternative pathway of lower activation energy.
The is no value in the equation whereby activation energy will affect the equilibrium constant.
To know the speed where the reaction reaches equilibrium we need to look at the rate equation also known as Arrhenius equation,
K= Ae^(-Ea/RT)
Here we can see with the lowering of Ea ( activation energy ) the rate constant rises causing the reaction to reach equilibrium quicker.

Final answer:

Enzymes cannot change the thermodynamic equilibrium constant of a reaction because they do not alter the free energy difference between the reactants and products.

Explanation:

Enzymes are biological catalysts that speed up chemical reactions by lowering the activation energy required for the reaction to occur. They achieve this by providing an alternative reaction pathway with a lower activation energy. However, enzymes cannot change the thermodynamic equilibrium constant of a reaction.

The thermodynamic equilibrium constant is a measure of the ratio of products to reactants at equilibrium. It is determined by the difference in free energy between the reactants and products. Enzymes, although they accelerate the rate at which equilibrium is reached, do not alter the free energy difference between the reactants and products. Therefore, they cannot change the equilibrium constant.

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Suppose the mole number of Ca2+ ions in a 50 mL water sample is quantified as 1.5 × 10−5 mol. What is the concentration of Ca2+ ions in the water sample in ppm CaCO3?