Chemical Reactions

Front

What is a chemical reaction?

Back

A process where substances (reactants) undergo a transformation to form new substances (products).

Front

What is evidence of a chemical reaction?

Back

Indicators such as color change, temperature change, gas production, or formation of a precipitate.

Front

What does the arrow in a chemical equation represent?

Back

It indicates the direction of the reaction, showing reactants transforming into products.

Front

What is a reactant?

Back

A substance that is consumed during a chemical reaction.

Front

What is a product?

Back

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

Front

What is the law of conservation of mass?

Back

In a chemical reaction, mass is neither created nor destroyed; it remains constant.

Front

What is a precipitate?

Back

A solid that forms and settles out of a liquid mixture during a chemical reaction.

Front

What is combustion?

Back

A chemical reaction that occurs when a substance reacts with oxygen, producing heat and light.

Front

What is an exothermic reaction?

Back

A reaction that releases energy in the form of heat.

Front

What is an endothermic reaction?

Back

A reaction that absorbs energy from its surroundings.