Chemistry, 17.09.2019 21:00 cheyennegolden6621
Consider the substances below.• 1 mol of beryllium• 1 mol of salt• 1 mol of water• 1 mol of hydrogenwhich statement is true about these substances? 1) they have exactly the same mass.2) they have different numbers of particles.3) they have the same number of atoms.4) they have different masses.
Answers: 1
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Which of these expressions are correct variations of the combined gas law? p1v1t2 = p2v2t1 both
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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.
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Consider the substances below.• 1 mol of beryllium• 1 mol of salt• 1 mol of water• 1 mol of hydrogen...
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