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Chemistry, 23.06.2019 12:00
Which of the following statements is true? a. most heat energy is easily recovered and used for useful actions. b. friction causes molecules to vibrate more slowly. burning air and gasoline in an c. engine changes chemical energy into mechanical energy. it is impossible to d. change mechanical energy into mechanical energy.
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Chemistry, 23.06.2019 13:00
What did the experiments of scientists after john dalton reveal about his atomic theory?
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Use the periodic table to calculate the molar mass of each compound below. give your answer to the c...
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