Question Info

This question is public and is used in 3 groups and 115 tests or worksheets.

Type: Multiple-Choice
Category: Reactions
Level: Grade 9
Score: 1
Author: amitaig
Last Modified: a month ago

View all questions by amitaig.

Reactions Question

View this question.

Add this question to a group or test by clicking the appropriate button below.

Note: This question is included in a group. The contents of the question may require the group's common instructions or reference text to be meaningful. If so, you may want to add the entire group of questions to your test. To do this, click on the group instructions in the blue box below. If you choose to add only this question, common instructions or reference text will not be added to your test.

Grade 9 Reactions

The activation energy in a chemical reaction is
  1. the energy needed to slow down a reaction.
  2. the energy needed to change lipids into proteins.
  3. the energy needed to get a reaction started.
  4. the energy needed to stop a reaction.
You need to have at least 5 reputation to vote a question down. Learn How To Earn Badges.