Endo & Exo Reactions Mini-Lesson

First, let us review...

What are some signs that a chemical reaction has taken place?

After you combine two substances together, a new substance forms. This would be an example of a ---

In an endothermic reaction, energy is ---

If a chemical reaction is endothermic, the temperature in the surroundings would ___ as the reaction absorbs energy.

In an exothermic reaction, energy is ---

If a chemical reaction is exothermic, the temperature of the surroundings would ___ as energy is released from the reaction.

What instrument would you use to detect whether a reaction was endothermic or exothermic?

____ reactions usually feel cool.

Surrounding temperatures get warmer in ___ reactions.

The process of photosynthesis is an ____ reaction.

The initial temperature of a reaction measured to be 20^oC. The final temperature was 45^oC. The reaction was ---

A rocket launch is an example of an ___ reaction.

The initial temperature of a reaction measured to be 20^oC. The final temperature was 10^oC. The reaction was ---

Which of the following are examples of endothermic reactions? (The reaction absorbs heat.)

Choose 2.

Which of the following are examples of exothermic reactions? (The reaction releases heat.)

Choose 2.