When excited electrons cascade to lower energy levels in an atom a)visible light is always emitted b)the potential energy of the atom increases c)the electrons always fall back to the first energy level d)the electrons fall indiscriminately to all levels e)the electrons fall back to a lower unfilled energy level
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Chemistry, 22.06.2019 04:30
There is a single path for electrons. the current decreases when additional resistors are added. the current will be the same in each resistor. these statements best describe a(n) circuit.
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Chemistry, 22.06.2019 04:50
Compare the equilibrium constants for the systems shown in the table. which favors products the most? which favors products the least? rank these systems in order from most to least in terms of favoring products rather than reactants. d > b > a > c c > a > b > d b > c > d > a a > d > c > b
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Chemistry, 22.06.2019 14:30
For the reaction shown, find the limiting reactant for each of the following initial amounts of reactants. 4al(s)+3o2(g)โ2al2o3(s) a) 1 molal, 1 mol o2 b) 4 molal, 2.6 mol o2 c) 16 molal, 13 mol o2 d) 7.4 molal, 6.5 mol o2
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Chemistry, 23.06.2019 00:00
How many moles of water are created if 3 moles of hydrogen react completely with excess oxygen?
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When excited electrons cascade to lower energy levels in an atom a)visible light is always emitted b...
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