Unit 3 Assessments

In an endothermic reaction, energy is _________.

• absorbed

• released

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

_____ reactions usually feel hot!

• endothermic

• exothermic

Tags

NGSS.HS-PS1-4

NGSS.HS-PS3-4

____ reactions usually feel cold.

• endothermic

• exothermic

Tags

NGSS.MS-PS1-4

After you mix two substances together, a new substance forms.  This is an example of:
 

•  Physical Change
•  Chemical Change

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

If a chemical reaction is EXOTHERMIC, the temperature would....

• Stay the same
• Increase
• Decrease

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Surrounding temperature gets warmer

• endothermic
• exothermic

Tags

NGSS.MS-PS1-4

Surrounding temperature gets cold

• Endothermic
• Exothermic

Tags

NGSS.MS-PS1-4

A student mixed two chemicals to allow them to react. The temperature before the reaction was 25 ° C. The temperature after the reaction was 18° C. Which of the following is true?

• It is an exothermic reaction

• It is an endothermic reaction

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

 $6\ CO_2+\ 6\ H_2O\ +\ Energy\ \rightarrow\ C_6H_{12}O_6\ +\ 6\ O_2$ 

• endothermic reaction

• exothermic reaction

Tags

NGSS.MS-LS1-6

NGSS.MS-LS1-7

NGSS.MS-PS1-2

NGSS.MS-PS1-5

 $O_2\left(g\right)\ +\ 2\ H_2\ \left(g\right)\ \rightarrow\ 2\ H_2O\ \left(g\right)\ +\ Energy$  

• endothermic

• exothermic

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-5