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Dahasolnce [82]
3 years ago
12

Assessment timer and count

Chemistry
1 answer:
Aneli [31]3 years ago
3 0

Answer:

I think it's the last one.

Explanation:

Because gravity is what makes our planets stay still and stops our planets from dropping and as they orbit around the sun that's what keeps the moon from bumping into earth. I hope this helps and makes sense.

<h3>p.s. can I pls be ur brainliest answer, I'd appreciate it </h3>
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Chemistry help please! I just need to make sure the answers correct.... Thank you!
Veronika [31]
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2. We have the equation PV = nRT, n being the number of moles
Pressure P = 1,000 kPa
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Number of moles = 1.21 moles.
8 0
3 years ago
One gram of carbon contains 50,200,000,000,000,000,000,000 atoms. express the number of carbon atoms in scientific notation
german
N(C)=5,02·10²² atoms

calculation check:

N(C)=(1/12)*6.022*10²³=0.5018*10²³≈5.02·10²²
5 0
3 years ago
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Sloan [31]

Answer:

yes

Explanation:

8 0
3 years ago
What would be an evidence of release in energy?
shusha [124]
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6 0
2 years ago
How many molecules are in 4.62 moles of nitric acid (HNO3)?
Lena [83]

Answer:

2.8x10^24

Explanation:

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6 0
3 years ago
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