Exothermic and Endothermic Diagrams Lesson

The energy released by exothermic reactions happens when...

• chemical bonds that release a lot of energy when they're formed are formed between atoms

• chemical bonds that require a lot of energy to break are broken

Tags

NGSS.HS-PS1-4

What kind of reaction is this?

• Endothermic

• Exothermic

• Cannot be determined

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

When iron nails get rusty, heat is released.  What process is this?

• Exothermic

• Endothermic

Tags

NGSS.MS-PS1-4

The graph above is from which type of reaction?

• Endothermic reaction

• Exothermic reaction

Tags

NGSS.HS-PS1-4

____ reactions usually feel cold.

• endothermic

• exothermic

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Burning sugar is an example of which reaction?

• Endothermic

• Exothermic

• Neither

Combustion (fireworks, explosions, burning, etc.) is an example of which reaction?

• Endothermic

• Exothermic

• Neither

When the temperature decreases, it is an _______ reaction.

• Exothermic

• Endothermic

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which reaction releases energy?

• Exothermic

• Endothermic

Tags

NGSS.MS-PS3-4

Which reaction absorbs energy?

• Exothermic

• Endothermic

Tags

NGSS.HS-PS1-4