Reaction Rates

Front

Smaller particle size allows for a _________ surface area to be exposed for the reaction.

Back

larger

Front

Exothermic reactions may release heat to the surroundings. True or False?

Back

True

Front

What is activation energy?

Back

The minimum amount of energy needed for a reaction to start.

Front

Explosions are reactions with very fast reaction rates. Explosions can happen when there is a large amount of powdered substance because of a large _________.

Back

surface area

Front

What letter represents the activation energy?

Back

A

Front

What is the effect of temperature on reaction rates?

Back

Increasing temperature generally increases reaction rates.

Front

Define a catalyst.

Back

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

Front

What is concentration in the context of reaction rates?

Back

The amount of a substance in a given volume, affecting how often particles collide.

Front

How does surface area affect reaction rates?

Back

Larger surface area allows more collisions between reactants, increasing reaction rates.

Front

What is a chemical reaction?

Back

A process where reactants transform into products, involving breaking and forming bonds.