PS 7.3 Formative

Energy stored in the chemical bonds of a substance is called _____ energy.

Tags

NGSS.HS-PS1-4

Chemical reactions involve the _____ of chemical bonds in the reactants, and the _____ of chemical bonds in the products.

• breaking, formation

• formation, breaking

• gaining, losing

• losing, gaining

Breaking chemical bonds _____ energy.

• requires

• releases

• destroys

• creates

Tags

NGSS.HS-PS1-4

The formation of chemical bonds _____ energy.

• requires

• releases

• destroys

• creates

Tags

NGSS.HS-PS1-4

A chemical reaction that releases energy to its surroundings is called an _____ reaction.

Tags

NGSS.HS-PS1-4

A chemical reaction that absorbs energy from its surroundings is called an _____ reaction.

Tags

NGSS.HS-PS1-4

2HgO + heat ---> 2Hg + O₂

• endothermic reaction

• exothermic reaction

Tags

NGSS.HS-PS1-4

C₃H₈ + 5O₂ ---> 3CO₂ + 4H₂O + heat

• endothermic reaction

• exothermic reaction

Tags

NGSS.HS-PS1-4

Endothermic or exothermic reaction?

• endothermic

• exothermic

Tags

NGSS.HS-PS1-4

Endothermic or exothermic reaction?

• endothermic

• exothermic

Tags

NGSS.HS-PS1-4