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The ratio of hydrogen atoms to oxygen atoms in water is 2:1. If an amount of water contains 341 trillion atoms of oxygen, how many hydrogen atoms are there?
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The ratio of hydrogen atoms to oxygen atoms in water is 2:1. If an amount of water contains 341 trillion atoms of oxygen, how many hydrogen atoms are there?

User Webelo
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2/1 = 341/x
cross multiply
(2)(x) = (1)(341)
2x = 341
x = 341/2
x = 170.5 trillion <===
User Algold
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