Endothermic vs Exothermic Reactions

In an endothermic reaction, heat is ...

• taken in

• given out

Tags

NGSS.HS-PS1-4

Is photosenthysis an Exothermic or an Endothermic reaction?

• Endothermic

• Exothermic

Tags

NGSS.HS-LS1-5

NGSS.HS-LS2-5

When rust forms on nails, new bonds are formed and energy is released. This is an example of an _____________ reaction.

• endothermic

• exothermic

Tags

NGSS.HS-PS1-4

During evaporation, water absorbs heat so that bonds can break and water vapor forms. This is an example of an _____________ reaction.

• endothermic

• exothermic

Tags

NGSS.HS-PS1-4

Endothermic reactions ​ (a)   energy and exothermic reactions ​ (b)   energy.

• store

• release

Answer explanation

Endothermic reactions absorb or take in energy from their surroundings, hence the correct answer for the first blank is 'absorb'. On the other hand, exothermic reactions release energy into their surroundings, hence the correct answer for the second blank is 'release'.

Tags

NGSS.HS-PS1-4

reactions absorb energy around it making the area feel 'colder.'

​ reactions release energy to the surrounding area making the area feel 'warmer.'

• Endothermic

• Exothermic

• Isothermic

Tags

NGSS.HS-PS1-4

reactions absorb energy around it making the area feel 'colder.' reactions release energy to the surrounding area making the area feel 'warmer.'

• Endothermic

• Exothermic

• Isothermic

Tags

NGSS.HS-PS1-4

Some chemical reactions are ​ (a)   where the heat energy is absorbed. Other chemical reactions release heat energy are known as ​ (b)   .​

• endothermic

• exothermic

• thermal

• geothermal

Tags

NGSS.HS-PS1-4

reactions absorb energy around it making the area feel 'colder.' reactions release energy to the surrounding area making the area feel 'warmer.'

• Endothermic

• Exothermic

• Isothermic

Tags

NGSS.HS-PS1-4

NGSS.HS-PS3-4

require(s) the addition of energy for a reaction to occur.

• Endothermic Reactions

• Exothermic Reactions

• Combustion Reactions

• Condensation

Tags

NGSS.HS-PS1-4