Chemical Reactions Part 1 (Test Review)

Front

What indicates that a chemical reaction has occurred?

Back

Evidence of a chemical reaction includes the formation of a precipitate, a color change, or a temperature change.

Front

What type of change is ice melting?

Back

Ice melting is a Physical Change.

Front

What is the term for the number in front of a compound or element in a chemical equation?

Back

The term is Coefficient.

Front

According to the law of conservation of mass, how do the amounts of each element compare on the reactant and product sides?

Back

The amount of atoms on each side is equal.

Front

What result indicates a new substance was formed when mixing two clear liquids?

Back

A yellow solid forms and settles to the bottom of the beaker.

Front

What is a precipitate?

Back

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

Front

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

Back

A chemical change results in the formation of new substances, while a physical change does not change the substance's chemical identity.

Front

What is a reactant in a chemical reaction?

Back

A reactant is a substance that undergoes change during a chemical reaction.

Front

What is a product in a chemical reaction?

Back

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

Front

What does a balanced chemical equation represent?

Back

A balanced chemical equation represents the conservation of mass, showing that the number of atoms of each element is the same on both sides.