Chemistry, 28.09.2019 08:20, kikimiller
Air is composed of 79%n^2, 21% o^2. if the air pressure is 101.3 kpa, what are the pressures of n^2 and o^2
Answers: 1
Chemistry, 22.06.2019 04:40, khan2491
Silver tarnishes as silver metal reacts with hydrogen sulfide, h2s, in the air. in this reaction, dark silver sulfide, au2s, covers the surface of silver. when silver is polished, this coating of silver sulfide can be removed from the surface. this makes the silver shiny again. enter the coefficients that balance the tarnishing reaction equation. (type 1 for no coefficient.)
Answers: 2
Chemistry, 23.06.2019 00:30, rose888829
The footprints of a dinosaur and the burrow of an ancient shrimp are examples of which kind of fossils
Answers: 2
Chemistry, 23.06.2019 01:30, koggebless
The solubility of barium nitrate is 9.02 g/100 g h2o at 20°c. a 15.2 g sample of barium nitrate is added to 200.0 g of water at 20°c. is the solution saturated, unsaturated, or supersaturated? a. unsaturated b. saturated c. supersaturated
Answers: 1
Air is composed of 79%n^2, 21% o^2. if the air pressure is 101.3 kpa, what are the pressures of n^2...
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