SC 5 E 7 2

When energy is absorbed and taken in during a chemical reaction it is called

• exothermic

• endothermic

• eccentric

• ectomorphic

Tags

NGSS.HS-PS1-4

The reactants are:

• molecular oxygen and 2 carbon

• 2 carbon monoxide

• all of these are products

• all of these are reactants

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

A precipitate is a ___________ that forms when 2 liquids react together.

• solid

• liquid

• gas

• plasma

Tags

NGSS.MS-PS1-2

Which of the following is evidence of a chemical reaction?

• Tearing paper.

• Change in color.

• Production of a gas.

• Change in temperature.

• Production of a precipitate.

Tags

NGSS.MS-PS1-2

In an exothermic reaction, heat is ...

• taken in

• given out

Tags

NGSS.HS-PS1-4

In an endothermic reaction, heat is ...

• taken in

• given out

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

_____ reactions usually feel hot!

• endothermic

• exothermic

During an endothermic reaction, heat is ________ and chemical bonds _______.

• released, formed

• absorbed, broken

• released, broken

• absorbed, formed

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

This change is a

• chemical reaction

• physical change

• musical change

• all answers are correct

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

When the matter in a chemical reaction gets colder it is called

• exothermic

• endothermic

• eccentric

• endomorphic

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5