I need the answers for question 2 and3
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Answers: 2
Chemistry, 22.06.2019 15:00, levelebeasley1
Which theory was contradicted by experiments with the photoelectric effect? light spreads out after it passes through a small opening. as soon as light strikes metal, electrons will be ejected. visible light, regardless of color, will cause the ejection of electrons when striking metal. the kinetic energy of ejected electrons depends on the frequency of light that strikes the metal.
Answers: 2
Chemistry, 22.06.2019 23:10, RealStephani
Match the formula for the following compound: magnesium sulfate heptahydratemgs·7h2omg2so4·7h2omg(s o4)2·7h2omgso4·7h2o
Answers: 1
Chemistry, 23.06.2019 10:30, lavorisjonesjr1
How much mass would a mole of hydrogen molecules contain? recall that hydrogen is diatomic. g/mol
Answers: 3
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