Endothermic and Exothermic Processes

The illustration shows cell respiration. Is the overall reaction of cell respiration an Endothermic or an Exothermic reaction?

• Endothermic

• Exothermic

Tags

NGSS.HS-LS1-7

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?

• The temperature did not change.

• It is an endothermic reaction

• It is an exothermic reaction

• Energy is released from the reaction into the surrounding.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

Photosynthesis takes place inside of leaf cells. Sunlight is required. Is this an Exothermic or an Endothermic reaction?

• Endothermic

• Exothermic

Tags

NGSS.HS-LS1-5

NGSS.HS-LS2-5

What type of reaction occurs in a hand warmer?

• exothermic

• endothermic

Tags

NGSS.HS-PS1-4

NGSS.HS-PS3-4

Which of the following is an ENDOTHERMIC change?

• condensation

• deposition

• freezing

• melting

Tags

NGSS.MS-PS1-4

During an endothermic change, the system absorbs energy from its surroundings.

• true

• false

Tags

NGSS.HS-PS1-4

What instrument would you use to detect an endothermic or exothermic reaction?

• triple beam balance

• ruler

• thermometer

Tags

NGSS.HS-PS3-4

In an exothermic reaction, heat is ...

• taken in

• given out

Tags

NGSS.HS-PS1-4

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

• Stay the same

• Increase

• Decrease

Tags

NGSS.HS-PS1-4

During an endothermic reaction in a beaker if we are part of the surroundings and touched the beaker, it would feel _______. 

• Warm

• Cold

Tags

NGSS.HS-PS3-4