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Elden [556K]
3 years ago
9

a solid sample of oil is warmed until it turns into a liquid. which property of the oil will decrease?

Chemistry
1 answer:
raketka [301]3 years ago
4 0

  I think the answer is it turnes into a gas. Hope it helps! :) Asnwer is density.

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How many moles are in 1.29x10^24 hydrogen atoms in HF
Nonamiya [84]
We know that, 1 mole of any substance contain 6.022 X 10^23 atoms/molecules.

Thus,  6.022 X 10^23 atoms = 1 mole
Therefore, 1.29x10^24 = \frac{1.29X10^2^4}{6.022X10^2^3}
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Thus, 2.14 moles<span> are present in 1.29x10^24 hydrogen atoms in HF.</span>
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4 years ago
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1)
Heat supplied can be calculated using:
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Look at the following Image:
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Hello, let me break this down for you! :)
A is your energy of your reactants, B is your activation energy, so the total value could be found from B-Y. C is the value of your energy of your products. X is your delta H value. So in this, your products are higher energy than the reactants, so H is + and e2-E1 is positive so E2 >E1
Therefore your answers would just be <span>E2 > E1 and
</span><span>Hrxn<span> is positive.
Hope this helps! If you have any other questions or need further explanation just let me know! :)
</span></span>
5 0
4 years ago
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