Chemistry, 28.01.2020 05:31 lorenavh81
What volume of a 2.5 m stock solution of h3po4 is needed to prepare 3.8 l of a 1.5 m h3po4 solution?
Answers: 3
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Select all that apply. a beta particle: is electromagnetic energy is an electron has zero charge is emitted from the nucleus has a +2 charge has a -1 charge
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Use the de broglie's wave equation to find the wavelength of an electron moving at 7.3 Γ 106 m/s. show your work. note: h = plank's constant (6.62607 x 10-34 j s)
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Two solids are mixed in a flask and stirred. after a few minutes, the flask becomes cold. which of the following best describes this reaction? a. an exothermic reaction b. a combustion reaction c. an endothermic reaction d. a decomposition reaction
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What volume of a 2.5 m stock solution of h3po4 is needed to prepare 3.8 l of a 1.5 m h3po4 solution?...
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