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zmey [24]
3 years ago
11

Easy Chemistry Help?

Chemistry
1 answer:
Nastasia [14]3 years ago
6 0
A=ok
B= Ca=1. and O=2. H=2
C= O=2
D=ok
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Answer:

C

Explanation:

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7 0
3 years ago
The cylinder of aluminum in class was approximately 13mm in circumference and 42mm in length. What would be it's approximate mas
Roman55 [17]

Answer:

Mass, m = 1.51 grams

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d=\dfrac{m}{V}

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V is the volume of the cylinder

V=\pi r^2h\\\\V=\dfrac{22}{7}\times0.206^2\times 4.2\\\\V=0.5601\ cm^3

So,

m=d\times V\\\\m=2.7\times 0.5601\\\\m=1.51\ g

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4 years ago
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hoa [83]
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There you go!</span>
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3 years ago
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