Chemistry, 23.12.2021 08:30 kayolaaaa53
An atom of helium has a mass about four times greater than that of an atom of hydrogen. Which choice makes the correct comparison of the relative numbers of helium and hydrogen atoms in equal masses of the two elements?
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The agent of mechanical weathering in which rock is worn away by the grinding action of other rock particles is call
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If 22.5 liters of oxygen reacted with excess of hydrogen, how many liters of water vapor could be produced?
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What happens when an atom of sulfur combines with two atoms of chlorine to produce sci2? a. each chlorine atom shares a pair of electrons with the sulfur atom. b. an electron is transferred from each chlorine atom to the sulfur atom. c. an electron is transferred from the sulfur atom to each chlorine atom. d. each chlorine atom shares all its valence electrons with the sulfur atom.
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An atom of helium has a mass about four times greater than that of an atom of hydrogen. Which choice...
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