Answer:
Place the reactants in a smaller container.
Explanation:
If you were to reduce the source of heat, the hydrogen and oxygen molecules would lose their kinetic energy, resulting in less collisions.
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Maintaining the same temperature of the reactants, the speed would neither increase nor decrease as temperature is directly proportional to the kinetic energy of the molecules, which in turn is directly proportional to the number of collisions. However, placing the reactants in a smaller container would result in less volume, and hence the molecules would collide with one another more often!
<u><em>Hope that helps!</em></u>
Answer:
Explanation:
At high elevations the atmospheric pressure is lower. That means that slower moving molecules of water at the surface meet with less resistance from the atmospheric pressure. So the water begins to escape with less energy needed. The boiling point goes from 100 at sea level to about 93 degrees about 6000 feet up.
Answer:
There are 0.0528 moles of Chromium Carbonate (III) in 15 grams. See the explanation below, please.
Explanation:
We calculate the weight of 1 mol of compound having the atomic weights of each element.
Weight Cr = 51, 9961 g Weight 0 = 15, 999 Weight C =12, 0107
Weight of 1 mol of Cr2 (C03)3 =51, 9961 x2 + 3 x (12, 0107 + 15, 999x 3)=
284, 0342 g
284, 0342 g -----1 mol of Cr2 (C03)3
15 g -----X = (15g x 1 mol)/284, 0342 g = 0, 0528 mol