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22.07.2019 •
Chemistry
The overall change in enthalpy of a reaction depends only on the reactants and the products. the path that is taken from the reactants to the products. the reactants and the catalysts only. the reactants, the products, and the catalysts.
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Ответ:
A. the reactants and the products
Explanation:
i just took the test edg2020
Ответ:
There would be 1.47 x 10^24 carbon atoms in the sample.
Explanation:
If I've understoof the question, you mean you have a sample of C3H8 that contains 3.92 x 10^24 H atoms and want to know how many carbon atoms there are in that sample.
You can figure that out using the ratio of C atoms to H atoms, 3:8.
3.92 x 10^24 H atoms x 3 C atoms/8 H atoms = 1.47 x 10^24 C atoms