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ludmilkaskok [199]
2 years ago
7

How many atoms of each element are chemical formula: 3K2O3.

Chemistry
2 answers:
hammer [34]2 years ago
4 0

Answer:

In 3K2O3 - 6 K atoms, 9 O atoms

In 2H3NCH3Br - 12 H atoms, 2 N atoms, 2 C atoms, 2 Br atoms

In 4 Ar2CO3 - 8 Ar atoms, 4 C atoms, 12 O atoms

Explanation:

All you need to do is multiply the coefficient by the number of each atom in the compound. For example, H3NCH3Br has 1 nitrogen, 1 carbon, 1 bromine, and 6 hydrogens. If you have 2H3NCH3Br, just multiply all those numbers by 2.

aksik [14]2 years ago
4 0
3k2o3 = 15

2h3nch3br = 17

4ar2co3 = 24
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