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Answers by Hillmark

Answers by Hillmark
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What is true about energy? Energy cannot be created during an ordinary chemical reaction. Energy is used up during an explosion. There is more energy after a chemical reaction than before the reaction.
answered Oct 23, 2017
0 votes
145k views
What is the place value relationship of the 9's in 299
answered Oct 13, 2017
1 vote
218k views
What is a good way to establish the credibility of online sources
answered Aug 29, 2017
1 vote
90.3k views
pencils are sold in packages of 5. explain why we need 6 packages in order to have enough for 27 students
answered Jul 19, 2017
4 votes
28.9k views
What is the most-selling item in Spain?
answered Mar 16, 2016
7 votes
206k views
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