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Chemistry, 22.06.2019 16:50, Pookiev
Which of the following is an indication that a substance has undergone a chemical change? a. no new product has been formed. b. the color of the substance has not changed. c. the original constitute has not changed. d. the molecular structure has changed.
Answers: 1
Chemistry, 22.06.2019 23:30, sweaversw9602
What are the similarities between compounds and mixtures?
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Chemistry, 23.06.2019 10:30, erikloza12pdidtx
Which of the following pairs of elements is most likely to form an ionic compound? a oxygen and fluorine b sodium and aluminum c calcium and chlorine d nitrogen and sulfur
Answers: 1
The smallest amount of energy required by reacting particles for a chemical reaction to begin is the...
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