PS - M19 L4 Notes Quizizz - Reaction Rates & Equilibrium

At higher temperatures, particles have more energy and move faster. As a result, they collide more ________________________. They also collide with greater energy, increasing the percentage of collisions resulting in a reaction.

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Increasing the concentration of a reactant in a solution ________________________ the rate of a reaction. The more reactant particles per unit volume, the greater the chance that a reaction will occur.

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Increasing the pressure and decreasing the volume of a gas increases the concentration of the gas. This ________________________ reaction rate.

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A spoonful of granulated sugar dissolves faster than a sugar cube. The difference is surface ________________________. Dissolving is a physical change, but the same principle applies to chemical changes.

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A _____ is a substance that speeds up a chemical reaction without being permanently changed itself.

Catalysts are used in industry to speed up reactions such as ________________________ production.

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Inhibitors slow down reactions or ________________________ them from occurring. Like catalysts, they themselves are not changed in the reaction.

Catalysts and inhibitors affect only the rate of a reaction. They do not change the ________________________ of product produced.

Many reactions under certain conditions can occur in ________________________ directions. These reactions are reversible.

A reversible reaction is one that can occur in both forward and reverse directions.

• true
• false

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