cass201 cass201

10-09-2016
Mathematics

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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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texaschic101 texaschic101

10-09-2016

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

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