2020 Sci 9 Chem Blue LG 2 FA 1

Front

Temperature

Back

the measure of how cold or warm a substance is.

Front

A catalyst is:

Back

a substance that lowers the activation energy of a chemical reaction.

Front

Concentration

Back

the amount of solute particles in a given volume.

Front

Surface area

Back

the external space of a solid that is able to react.

Front

What is a chemical reaction?

Back

A reaction during which new substances are formed.

Front

Activation energy

Back

the energy required for a chemical reaction to begin.

Front

Reaction rate

Back

the speed at which a reaction occurs.

Front

Rate

Back

change over time

Front

In a chemical reaction, if the reactants are heated, the reaction usually happens

Back

faster

Front

What is the main purpose of a catalyst in chemical reactions?

Back

To speed up the reaction.