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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.
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Chemistry, 23.06.2019 07:00, ashleyrturner08
Explain what happened when the storm surges from hurricanes reached the gulf coast
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Which atom has the highest ionization energy? magnesium, barium, calcium, beryllium...
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