Which statement about niels bohr’s atomic model is true?
a) higher orbits have lower energie...
Chemistry, 25.09.2019 12:50 sydmarie02
Which statement about niels bohr’s atomic model is true?
a) higher orbits have lower energies
b) each orbit has a specific energy level
c) electrons can exist in any energy level
d) orbits close to the nucleus have no energy
Answers: 2
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Calcium hydride (cah2) reacts with water to form hydrogen gas: cah2(s) + 2h2o(l) → ca(oh)2(aq) + 2h2(g) how many grams of cah2 are needed to generate 45.0 l of h2 gas at a pressure of 0.995 atm and a temperature of 32 °c?
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As air becomes more dense, (select all that apply) o. air weighs less o. gas molecules are closer together o. air is colder o. air weighs more o. gas molecules are further apart o. air is hotter
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