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If the atomic mass of an atom is 34 and the atom contains 13 protons, how many neutrons does the atom contain?
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Avolleyball player hit a ball with a mass of 0.25 kg. the average acceleration of the ball is 15.5 m/s². how much force did the volleyball player apply to the ball? 62.0 n 3.87 n 62.0 m/s² 3.87 m/s²
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Chemistry, 22.06.2019 21:30
If you burn 46.6 g of hydrogen and produce 416 g of water, how much oxygen reacted
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Chemistry, 23.06.2019 12:30
0.070g of hydride of carbon occupies 56cm^3 at s.t.p when vaporized and contained 14.29% by mass of hydrogen.what is the formula for the hydrocarbon
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Which of the following substances are likely to be soluble in water? a) zns b) au2(co3)3 c) pbcl2...
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