yatesalexis2 yatesalexis2

10-10-2017
Chemistry

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what percentage do the elements hydrogen and helium account forr in the universe

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Rohan11 Rohan11

10-10-2017

they make up about 75% of the universe

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Аноним Аноним

10-10-2017

the answer is about 75%
hope it helps!

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