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Annette [7]
3 years ago
5

Which of the following chemical formulas represents a total of 12 atoms of oxygen?

Chemistry
2 answers:
user100 [1]3 years ago
7 0

2Fe(No2)3

Explanation:

by multiplying 2×3 we get 6

then 2×6 so we get 12 atoms of o

9966 [12]3 years ago
4 0

Answer:

3Sn(s04)2

Explanation:bc it cant be anything else

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3 years ago
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By weight atmospheric air is approximately 23.15% oxygen and 76.85% nitrogen. What is the partial pressure of oxygen in the air
inna [77]

Answer:

Partial pressure of oxygen = 23.38 kpa (Approx)

Explanation:

Given:

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Partial pressure of oxygen

Computation:

Partial pressure of oxygen = [Amount of oxygen x Pressure]/100

Partial pressure of oxygen = [23.15% x 101]/100

Partial pressure of oxygen = 23.38 kpa (Approx)

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