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Nataliya [291]
3 years ago
12

A decrease in temperature reduces the volume of gas

Chemistry
2 answers:
Ksenya-84 [330]3 years ago
7 0

Answer:

<em>Chemical</em><em> </em><em>change</em><em>.</em>

<em> </em><em> </em>

<em>Hope</em><em> </em><em>this</em><em> </em><em>helps</em><em> </em><em>you</em><em>.</em>

alisha [4.7K]3 years ago
6 0
A) chemical change.
just the letter A is your answer that says chemical change (sorry had to put extra words for the new policy)
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If you dilute 19.0 mL of the stock solution to a final volume of 0.310 L , what will be the concentration of the diluted solutio
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Answer:

M_2=0.613M_1

Explanation:

M_1 = Concentration of stock solution

M_2 = Concentration of solution

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We have the relation

M_1V_1=M_2V_2\\\Rightarrow M_2=\dfrac{M_1V_1}{V_2}\\\Rightarrow M_2=\dfrac{M_119}{310}\\\Rightarrow M_2=M_1\times\dfrac{19}{310}\\\Rightarrow M_2=0.613M_1

\boldsymbol{\therefore M_2=0.613M_1}

The concentration of the diluted solution will be 0.613 times the concentration of the stock solution.

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3 years ago
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C

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Exothermic means that heat is released from the reaction

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