Chemistry, 12.08.2020 08:01 ZachLaVine2016
PLEASE PLEASE HELP What is the mass of a sample material that has a volume of 72.2cm³ and a density of 7.7g/cm³?
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Chemistry, 22.06.2019 08:00
An electron moved from shell n = 2 to shell n = 1. what most likely happened during the transition? a fraction of a photon was added. a photon of energy was absorbed. a fraction of a photon was removed. a photon of energy was released.
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Chemistry, 22.06.2019 19:00
How does a catalyst increase the speed of a reaction? a. the catalyst eliminates the activated complex stage, allowing products to form immediately. b. the catalyst lowers the energy level of the reactants, making it easier for them to react. c. the catalyst makes it easier for the activated complex to form, lowering the activation energy. d. the catalyst raises the energy level of the products, making the reaction finish sooner. reset next
Answers: 1
PLEASE PLEASE HELP What is the mass of a sample material that has a volume of 72.2cm³ and a density...
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