2.3 Chemical Change Study Session

The chemicals on the right side of an equation, the end result, are referred to as the ___________________.

• products

• low

• reactants

• combustion

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

The total amount of mass on the right side of a chemical equation is never equal to the total amount of mass on the left side of the equation.

• True

• False

Tags

NGSS.MS-PS1-5

___________________ are the only way to form compounds.

• Reactants

• Change

• Chemical reactions

• Conservtion

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-1

Acids have low pH.

• True

• False

A ___________________ reaction usually results in heat and light.

• odor

• physical

• combustion

• mass

A candle burning is a ___________________.

• physical change

• chemical change

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

NGSS.MS-PS1-4

A solid formed by a chemical reaction of some solutions is a ___________________.

• liquid

• precipitate

• combustion

• condensation

Tags

NGSS.MS-PS1-2

When products form reactants, a chemical reaction has occurred.

• True

• False

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

If you see the formation of bubbles, a change in color, and/or an odor, a chemical reaction has occurred.

• True

• False

Tags

NGSS.MS-PS1-2

The Law of Conservation states that the total mass of the reactants equals the total mass of the products in a chemical reaction.

• True

• False

Tags

NGSS.MS-PS1-5