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Calculate the number of molecules present in 0.750 mol of mgo.
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Which of the following did jj thompson discover about atoms? a)an atom has an internal structure. b) atoms are tiny indivisible particles. c)electrons orbit the nucleus of an atom. d) the nucleus of an atom contains protons and neutrons.
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Elements in group 2 are all called alkaline earth metals. what is most similar about the alkaline earth metals?
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Which of the following holds true for volume of the temperature of a given amount of gas Increases a...
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