Chemical Reactions Review

Front

What is a chemical reaction?

Back

A process where substances (reactants) transform into new substances (products) with different properties.

Front

What is the law of conservation of mass?

Back

In a chemical reaction, the mass of the reactants equals the mass of the products.

Front

What happens to the color of the Statue of Liberty over time?

Back

It changed from bronze to green due to a chemical reaction called oxidation.

Front

What is photosynthesis?

Back

A chemical reaction where plants use sunlight, carbon dioxide, and water to produce sugar and oxygen.

Front

What is a precipitate?

Back

A solid that forms when two liquids react and combine.

Front

What is the difference between a physical change and a chemical change?

Back

A physical change alters the form of a substance without changing its identity, while a chemical change results in the formation of new substances.

Front

What are reactants in a chemical reaction?

Back

The starting substances that undergo change during a chemical reaction.

Front

What are products in a chemical reaction?

Back

The new substances formed as a result of a chemical reaction.

Front

Can a chemical reaction be reversed?

Back

Some chemical reactions are reversible, but many are not.

Front

What is an example of a chemical reaction?

Back

Rusting of iron, where iron reacts with oxygen to form iron oxide.