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Chemistry, 22.06.2019 23:00
What is the most common reason for matter changing its state?
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Chemistry, 23.06.2019 10:00
An uncovered pot of water lies out in the sun. which statements correctly describe what happens at the surface of the liquid water? 1. the vapor pressure remains constant regardless of the water temperature. 2. the vapor pressure is produced by water molecules that have evaporated. 3. the vapor pressure increases as the sun heats the water in the pot. 4. evaporation stops once the vapor pressure reaches a certain point. 5. evaporation and condensation both occur on the liquid’s surface.
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Chemistry, 23.06.2019 12:30
You have 125 g of a certain seasoning and are told that it contains 70.0 g of salt. what is the peroentage of salt by mass in this seasoning?
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Chemistry, 23.06.2019 13:30
How many more valence electrons does sodium need to have a full outer valence shell
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Four acids are analyzed and their ka values are determined. which of the following values represents...
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