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Shkiper50 [21]
3 years ago
6

Together oxygen and nitrogen comprise what percentage of the atmosphere

Chemistry
1 answer:
Charra [1.4K]3 years ago
5 0
Oxygen is 21% and nitrogen is 78% so combined is 99%
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MArishka [77]

Answer:

a

Explanation:

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3 years ago
Jon is running for city council and wants to campaign on human development goals for his community. Which issue should he use? A
kotegsom [21]

Answer:

E. better schools

Explanation:

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3 years ago
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3 years ago
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A eraser has a mass of 4g and a volume of 2cm3 what is it’s density
sladkih [1.3K]

Answer:

<h3>The answer is 2.0 g/cm³</h3>

Explanation:

The density of a substance can be found by using the formula

density =  \frac{mass}{volume} \\

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We have

density =  \frac{4}{2}  \\

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<h3>2.0 g/cm³</h3>

Hope this helps you

4 0
3 years ago
Ion arrangements of three general salts are represented below. h5sil917 h5sil917021 h5sil91703 which ion arrangement has the hig
vovangra [49]
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3 years ago
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