PS M19 L3 Notes Review

the force that holds two atoms together

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NGSS.HS-PS1-3

All chemical reactions release or absorb ________________.

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NGSS.HS-PS1-4

Chemical bonds are the ________________ of this energy.

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NGSS.HS-PS1-4

The breaking of bonds ________________ energy.

• requires
• releases

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NGSS.HS-PS1-4

The formation of bonds ________________ energy.

• releases
• requires

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NGSS.HS-PS1-4

Chemical reactions that ________________ energy are called exergonic reactions.

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NGSS.HS-PS1-4

When the energy of an exergonic reaction is given off mostly in the form of ________________ energy, the reaction is called an exothermic reaction.

Chemical reactions that ________________ energy are called endergonic reactions.

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NGSS.HS-PS1-4

When the energy needed to keep an endergonic reaction going is in the form of ________________ energy, the reaction is called an endothermic reaction.

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NGSS.HS-PS3-1

This graph shows a ________________ reaction.

• exergonic
• endergonic

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NGSS.HS-PS1-4