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Ronch [10]
3 years ago
13

Which specific gas is most abundant in earth's atmosphere?

Chemistry
2 answers:
elena-14-01-66 [18.8K]3 years ago
8 0
Nitrogen is 78.08% of the air is fills the earth's atmosphere.
erastovalidia [21]3 years ago
5 0

Answer:

nitrogen/78.08%

Explanation:

Hope this helps you and you pass your test good luck:p

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A block of aluminum occupies a volume of 15.0 mL and weighs 40.5 g. What is its density ?
wariber [46]

Answer:

<h2>2.7 g/mL</h2>

Explanation:

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

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

From the question we have

density =  \frac{40.5}{15}  = 2.7 \\

We have the final answer as

<h3>2.7 g/mL</h3>

Hope this helps you

5 0
3 years ago
How many mL of 0.200M KI would contain 0.0500 moles of KI? <br><br> Please explain and show work.
valina [46]

Answer:

250ml

Explanation:

call it V

V*0.2=0.05 (moles)

so V=0.05/0.2 = 0.25l = 250ml

4 0
3 years ago
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Which type of weathering is caused by plants?
alexdok [17]

Answer:

c.

Explanation:

7 0
3 years ago
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Consider the equilibrium reaction. 4A+B↽−−⇀3C After multiplying the reaction by a factor of 2, what is the new equilibrium equat
disa [49]
8A+2B——> 6C
since you multiply by a factor of 2 you do that to each letter
4*2=8
1*2=2
3*2=6
8 0
3 years ago
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