Endothermic and Exothermic Reactions

A fire burning would be an example of an _____ reaction.

• endothermic

• exothermic

Tags

NGSS.HS-PS1-4

Chemicals that end in a chemical reaction are called _____.

• products

• reactants

True or False: A solution is made and the temperature increases. This is an example of an exothermic chemical reaction.

• True

• False

Tags

NGSS.HS-PS1-4

When an _____ reaction occurs, the reactants are at a lower energy.

• endothermic

• exothermic

Tags

NGSS.HS-PS1-4

As the reaction progresses in an ____ reaction, the temperature of the reaction decreases.

• exothermic

• endothermic

Tags

NGSS.HS-PS1-4

In a laboratory, a student combines vinegar and baking soda into a beaker. The initial temperature is 28 degrees Celsius and the final temperature reading two minutes later is 20 degrees Celsius. Was energy absorbed from or released to the surroundings?

• absorbed from

• released to

Tags

NGSS.HS-PS1-4

NGSS.HS-PS3-4

In a laboratory, a student combines vinegar and baking soda into a beaker. The initial temperature is 28 degrees Celsius and the final temperature reading two minutes later is 20 degrees Celsius. Is this an endothermic or an exothermic reaction?

• endothermic reaction

• exothermic reaction

Tags

NGSS.HS-PS1-4

NGSS.HS-PS3-4

In the figure, the reactants have _____ energy than the products.

• more

• less

Tags

NGSS.HS-PS1-4

In the figure, heat energy is _____ during the reaction.

• released

• absorbed

Tags

NGSS.HS-PS1-4

The figure shows an _____ reaction.

• endothermic

• exothermic

Tags

NGSS.HS-PS1-4