alexabbarker9781
03.06.2021 •
Chemistry
How many molecules of H2O are contained in 78.34 grams?
6.342 X 1019 molecules
2.618 X 1024 molecules
5.634 X 1025 molecules
9.984 X 1022 molecules
1.198 X 1026 molecules
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Ответ:
4.716x10^25
Explanation:
1 molecule of water is equivalent to 6.02x10^23
hence 78.34 is equivalent to 78.34x6.02x10^23
and the answer is 4.716x10^25
Ответ:
0.4 chance
Step-by-step explanation:
4 out of 10 is 0.4