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melisa1 [442]
3 years ago
15

Which property of chlorine explains why it is likely to form a compound with an alkali metal

Chemistry
1 answer:
Aleksandr [31]3 years ago
4 0

Answer:

a. It will accept one electron to complete its outer shell.

Explanation:

Chlorine is in Group 17, so it has <em>seven valence electrons</em>, one short of a complete outer shell.

Thus, it will accept an electron from sodium to complete its outer shell.

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Answer:

\% Cu=45.2\%\\\\\% Zn=53.6\%\\\\\% Pb=1.2\%

Explanation:

Hello!

In this case, given the masses of copper, zinc and lead, it is possible to compute the moles via their atomic masses first:

n_{Cu}=\frac{91.0gCu}{63.55g/mol}=1.432mol\\\\ n_{Zn}=\frac{111gZn}{65.41g/mol}=1.697mol\\\\n_{Pb}=\frac{7.51gPb}{207.2g/mol}=0.0362mol\\

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\% Cu=\frac{1.432}{1.432+1.697+0.0362}*100\% =45.2\%\\\\\% Zn=\frac{1.697}{1.432+1.697+0.0362}*100\%=53.6\%\\\\\% Pb=\frac{0.0362}{1.432+1.697+0.0362}*100\%=1.2\%

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