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Mrrafil [7]
2 years ago
8

Petrified fossils are really

Chemistry
1 answer:
Anna35 [415]2 years ago
3 0
I think it would be either dead bodies or rocks? i dont really understand too well but sorry if this doesn’t help!! :((
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Which mass of oxygen completely reacts with 4.0 grams of hydrogen to produce 36.0 grams of water
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This problem may easily solved by applying the conservation of mass, which states that the total mass before and after a change is constant because mass can neither be created nor destroyed.
We know that water consists of only hydrogen and water, and that there are no other reactants except hydrogen and oxygen. Thus:
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mass of oxygen = 32 grams
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