Rates of chemical reactions

Front

What is the measure of how much area of an object is exposed?

Back

Surface Area

Front

What effect does smaller particle size have on surface area for a reaction?

Back

It allows for a larger surface area to be exposed for the reaction.

Front

What is the rate of reaction?

Back

The time it takes for a reaction to occur.

Front

Does increasing the concentration of the reactants slow down the reaction?

Back

False

Front

What happens when a seltzer tablet is ground into powder?

Back

It increases the rate of reaction due to increased surface area.

Front

What is a catalyst?

Back

A substance that increases the rate of a chemical reaction without being consumed in the process.

Front

How does temperature affect the rate of chemical reactions?

Back

Increasing temperature generally increases the rate of reaction.

Front

What is collision theory?

Back

A theory that states that for a reaction to occur, reactant particles must collide with sufficient energy and proper orientation.

Front

What is concentration in the context of chemical reactions?

Back

The amount of a substance in a given volume, which affects the rate of reaction.

Front

What is the relationship between surface area and reaction rate?

Back

A larger surface area increases the rate of reaction.