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Hoochie [10]
2 years ago
12

PLEASE HELP ME ASAP!!!!!!!!!

Chemistry
1 answer:
snow_lady [41]2 years ago
6 0

Answer:

the answer is c 8.91g/cm³

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Explain why for static electricity to occur between two surfaces that are rubbed against each other, one of the materials has to
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The rubbing creates a negative charge that is carried by electrons. The electrons can build up t produce static electricity.
8 0
2 years ago
PLEASE HELL ME!!!!
vazorg [7]

Answer:

<h3>The answer is 0.045 kg/cm³</h3>

Explanation:

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

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

From the question

mass of cylinder = 14 kg

Volume of a cylinder = πr²h

where

r is the radius

h is the height

radius =  \frac{diameter}{2}  \\

From the question

h = 25 cm

r =  \frac{4}{2}  = 2 \:  \:  \: cm

The volume of the cylinder is

V =  {2}^{2} (25)\pi \\  = 4 \times 25\pi \\  = 100\pi \\  = 314.159265...

We have

volume = 314.159 cm³

The density of the cylinder is

density =  \frac{14}{314.159}  \\  = 0.044563421...

We have the final answer as

<h3>0.045 kg/cm³</h3>

Hope this helps you

7 0
3 years ago
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Which hydrocarbon is an unsaturated hydrocarbon?
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1-hexene, has the suffix -ene, which means that it is an alkene.   Alkanes do have unsaturation or double bonds. As the name indicates, 1-hexene has one double bond.

CH₂=CHCH₂CH₂CH₂CH₃

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