Exothermic Reactions

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

• stay the same

• increase

• decrease

Tags

NGSS.HS-PS1-4

What type of reaction occurs in hand warmers?

• exothermic

• endothermic

Tags

NGSS.HS-PS1-4

NGSS.HS-PS3-4

_____ reactions usually feel hot!!

• endothermic

• exothermic

Tags

NGSS.HS-PS1-4

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

• Exothermic

• Endothermic

Tags

NGSS.HS-PS1-4

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

Energy is released during the process of cellular respiration. This is an example of an ___________ reaction.

• endothermic

• exothermic

Tags

NGSS.HS-LS1-7

One of the products of combustion is heat. This means it is an example of an ____________ reaction.

• endothermic

• exothermic

Tags

NGSS.HS-PS1-4

NGSS.HS-PS3-4

Lighting a match produces heat (energy) as the match stick burns. This is an example of an ____________ reaction.

• endothermic

• exothermic

Tags

NGSS.HS-PS1-4

Which of the following is a characteristic of an exothermic reaction?

• Absorbs heat from the surroundings

• Releases heat to the surroundings

• Requires continuous energy input

• Occurs only in living organisms

Tags

NGSS.HS-PS1-4

What is the sign of the enthalpy change (ΔH) for an exothermic reaction?

• Positive

• Negative

• Zero

• Undefined

Tags

NGSS.HS-PS1-4