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Chemistry, 21.06.2019 17:30
One mole of zinc has a mass of 65.4 grams. approximately how many atoms of zinc are present in one mole of zinc? 32 × 1023 atoms 6 × 1023 atoms 66 atoms 65 atoms
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The first element on the periodic table of elements is carbon. a. true b. false
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An atom of lithium-7 has an equal number of(1) electrons and neutrons(2) electrons and protons(3) positrons and neutrons(4) positrons and protons
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Calculate the decrease in temperature when 7.00 L at 21.5 °C is compressed to 4.00 L. The pressure r...
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