Chemical Reactions

Front

What happens to atoms in a chemical reaction?

Back

They rearrange.

Front

What is an example of an endothermic reaction?

Back

Cold pack.

Front

Which of the following is NOT a chemical change?

Back

Phase Change.

Front

When chemicals react, do the atoms become different atoms?

Back

False.

Front

What does the Law of Conservation of Mass state?

Back

Matter is neither created nor destroyed; the number of atoms in reactants will be identical to the number of atoms in products.

Front

What is a chemical reaction?

Back

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

Front

What is an exothermic reaction?

Back

A reaction that releases energy, usually in the form of heat.

Front

What is a reactant?

Back

A substance that undergoes change in a chemical reaction.

Front

What is a product?

Back

A substance that is formed as a result of a chemical reaction.

Front

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

Back

A physical change does not alter the chemical composition, while a chemical change does.