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8_murik_8 [283]
2 years ago
13

Select the correct answer.

Chemistry
2 answers:
nikklg [1K]2 years ago
8 0
the answer is A- the spacing between particles decreases. Because as you put heat on a solid such a ice the density of tht solid decreases and turn into a liquid (water)

when density of a solid decreases, the spacing between the particles decreases

In a way just think that the particles loosen up to the point where it no longer holds together as a solid.
Reptile [31]2 years ago
6 0
C.

Particles will also move faster.
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Does pb(no3)2 + Na3(PO4) = Pb3(PO4)2 + Na(NO3) have a precipitate?
ipn [44]

Answer:

Yes, Pb3(PO4)2.

Explanation:

Hello there!

In this case, according to the given balanced chemical reaction, it is possible to use the attached solubility series, it is possible to see that NaNO3 is soluble for the Na^+ and NO3^- ions intercept but insoluble for the Pb^3+ and PO4^2- when intercepting these two. In such a way, we infer that such reaction forms a precipitate of Pb3(PO4)2, lead (II) phosphate.

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4 0
3 years ago
Once the sun's energy reaches the earth's atmosphere through radiation, it is circulated within the atmosphere and oceans throug
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B) convection

Explanation:

Once the sun's energy reaches the earth's atmosphere by radiation, it is circulated within the atmosphere and oceans through convection.

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4 0
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I think this is what you mean:

    H H H H
H-C-C-C-C-H
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OR 

<span>CH3CH2CH2CH3
</span>
If not, clarify and I will be happy to help.
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