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Ket [755]
3 years ago
15

Which of the following elements is a metal in the periodic table​

Chemistry
1 answer:
OverLord2011 [107]3 years ago
8 0

Answer:

12  My     Magnesium

13 Al Aluminum

19 K Potassium

20 Ca Calcium

Explanation:

I think

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The heat of vaporization ΔHv of dichloromethane CH2Cl2 is 28.0 /kJmol . Calculate the change in entropy ΔS when 3.3g of dichloro
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Answer:

\Delta _VS=3.48x10^{-3}kJ=3.48J

Explanation:

Hello,

In this case, the change in the entropy, by knowing the change in the enthalpy and the temperature for a vaporization process is given by:

\Delta _VS=\frac{\Delta _VH}{T_V}

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