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Question
If the relative mass of a hydrogen atom is 1/4 that of a helium atom, how many helium atoms would you need to equal the mass of 200 hydrogen atoms?A) 50
B) 200
C) 800
D) 4
E) 100
Answer
This answer is hidden. It contains 1 characters.
Related questions
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Heat energy is measured in units of
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A) First law
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Newton discovered
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