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Aleks04 [339]
3 years ago
9

How could you separate a mixture of rocks and sand?

Chemistry
1 answer:
ryzh [129]3 years ago
3 0
To separate a mixture of rocks and sand I think water will be the best option to break it down
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Draw an ether that contains exactly five carbon atoms and only single bonds
Eddi Din [679]

<em>Answer:</em>

  •                                       H3CH2COCH2CH2CH3

<em>Ether:</em>

Ether are organic compounds that contain ether functional group , in which oxygen atom is connected with two alkyl or aryl group.

They have general formula as follow

  • R---O---R   or R'---O----R or R'---O---R'

            while  R = Alkyl

                       R' = Aryl

8 0
3 years ago
Using two different instruments I measured the length of my foot to be 27 centimeters and 27.00 centimeters. Explain the differe
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Answer:

As you used two diferent instruments, one is more sensitive than the other.

Explanation:

The sensitivity of an instrument is the minimum amount of magnitude that can be  differentiate a measurement system.

In method A, you got 27 cm, so if in method B, you got 27.00, method B is more sensitive. It's like saying that one system measures more than the other

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Alex_Xolod [135]
Earthquakes make the surface all cracky and hard where it’s hard to dig up and the soil is like hard to step on because one false move and you could fall down
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A sequence of thermonuclear fusion processes inside massive stars can continue to transform the nuclei of elements such as carbo
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Answer:

Iron is the element that is produced at the limit of the reaction.

Explanation:

In nuclear fusion 2 lighter nuclei are combined together into a single nucleus releasing a tremendous amount of energy in the process.

Up to fusion of iron the reaction of fusion is exothermic but when iron atom pops out the reaction becomes endothermic and it requires very high amount of energy to fuse iron atoms which is not available thus marking an end to the fusion reaction.

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Which pair of dispersed phases and dispersing media can never form a colloid?
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Option B Liquid and Gas

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