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Ilya [14]
3 years ago
7

Calculate the percent by mass of carbon in CO2 (carbon dioxide). Please show all work.

Chemistry
1 answer:
anygoal [31]3 years ago
6 0
%C= 12/12 + 2·16=0,273=27,3%.
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Order the elements from smallest to largest atomic number
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Answer:

d and e - Sodium and antimony

Explanation:

The atomic numbers remain the same, while the mass numbers change (because neutrons are being added or taken away).

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6 0
3 years ago
Determine how many carbon dioxide (CO2) molecules are produced if 8.45 x 1023 molecules of water (H2O) are produced 2 C2H6 (g) +
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How many molecules are there in 0.45 moles of so3
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6 0
2 years ago
815 yd to km (need 3 sig fig)
SpyIntel [72]

<u>Answer:</u> The correct answer is 0.745 km

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Hence, the correct answer is 0.745 km

5 0
3 years ago
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