Chemical Reactions

Front

What is a chemical change?

Back

A process where substances transform into new substances with different properties.

Front

Which of the following is NOT a chemical change?

Back

Phase Change.

Front

What happens during a chemical reaction?

Back

Bonds of the reactants break apart and reform to make new substances.

Front

What is an endothermic reaction?

Back

A reaction that absorbs heat, causing a drop in temperature.

Front

What is an exothermic reaction?

Back

A reaction that releases heat, causing an increase in temperature.

Front

What is the Law of Conservation of Mass?

Back

Matter is neither created nor destroyed; the number of atoms in reactants equals the number of atoms in products.

Front

What is a reactant?

Back

A substance that undergoes a chemical change in a reaction.

Front

What is a product?

Back

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

Front

What is a phase change?

Back

A physical change that occurs when a substance changes from one state of matter to another.

Front

What is a catalyst?

Back

A substance that speeds up a chemical reaction without being consumed in the process.