The substances you begin with in a chemical reaction are:

In this word equation, what are the reactants? oxygen + iron --> iron oxide

The substances you end with in a chemical reaction are called:

In this word equation, what are the products? oxygen + iron --> iron oxide

What is the correct word equation for magnesium reacting in hydrochloric acid to release bubbles of hydrogen gas in magnesium chloride?

What is meant by 'reaction rate'?

A substance that speeds up a reaction but is not used up or changed in the reaction is called a:

When a catalyst is made by a living thing to speed up digestion, it is called:

Which of the following actions will speed up the rate of reaction?

Which of the following actions will slow down the rate of reaction?