Chemistry, 25.01.2021 20:50 Deavionaaaaa
In his experiment, Balmer introduced hydrogen gas in a discharged tube in order to excite electrons on higher energy levels. Then, as the electrons dropped down to lower energy levels, photons were emitted by the atoms. What is the energy of a photon emitted by a electron dropping from level n
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During trial 2, what allowed you to determine that aluminum was the limiting reactant? check all that apply. all of the copper dissolved. all of the aluminum dissolved. the solution turned clear. the number of grams of copper(ii) chloride used in the reaction was greater than the number of grams of aluminum. the molar ratio of copper(ii) chloride to aluminum was greater than 3: 2, the equation’s molar ratio.
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One does not belong why? ice, gold ,wood ,diamond and table salt
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Ajet plane is speeding down the runway during takeoff. air resistance is not negligible. identify the forces on the jet.
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What is the average rate of the reaction between 10 and 20 s?
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