Ajar is filled with water, and the lid is closed tightly. the jar is kept at constant temperature. what happens at the surface of the water? a. water molecules evaporate and condense at the same rate. b. water molecules evaporate and condense, but evaporation occurs more quickly. c. water molecules evaporate only and do not condense. d. water molecules condense only and do not evaporate.
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Chemistry, 22.06.2019 15:30, vivianfling
Why does earth rotate? because earth is formed from cold gases collapsing due to gravity because the matter in the nebula that formed earth was spinning because earth forms more than 99% of the mass of the solar system because the hydrogen atoms inside the nebula fused to form helium
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Chemistry, 22.06.2019 23:00, Mw3spartan17
What extra step distinguishes fermentation from glycolysis
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Chemistry, 23.06.2019 06:40, hackman1216
The combustion of methane, ch4, releases 890.4kj/mol. that is, when one mole of methane is burned,890.4 kj are given off to the surroundings. this meansthat the products have 890.4 kj less than the reactants. thus, ah for the reaction = - 890.4 kj. a negative symbolforah indicates an exothermic reaction. ch (g) + 20 (g)> co2 (g) + 2 h0 (1); ah = - 890.4 kga) how much energy is given off when 2.00 mol of ch, are burned? b) how much energy is released when 22.4g of ch. areburned?
Answers: 1
Ajar is filled with water, and the lid is closed tightly. the jar is kept at constant temperature. w...
Chemistry, 19.12.2019 03:31