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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.
Answers: 1
Chemistry, 23.06.2019 15:50
Astable atom that has a large nucleus most likely contains 1. more neutrons than protons. 2.more protons than neutrons. 3.equal numbers of protons and neutrons. 4.changing numbers of protons and neutrons.
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Chemistry, 23.06.2019 19:30
Where do the numbers in a stoichiometry mole ratio come from
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Chemistry, 23.06.2019 20:00
Assume you inhale in about 6 l of air per minute how much nitrogen do you breathe in one minute
Answers: 1
How many milliliters of a 3.4 M NaCl solution would be needed to prepare each solution?
a. 45 mL of...
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