3 years ago

List 2 of the important properties of gases.

Chemistry

2 answers:

sukhopar [10]3 years ago

8 0

Gasses are easy to compress
And they expand to fill their containers

tigry1 [53]3 years ago

8 0

1.compressibility
2.expandability

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d. 127 g/mol.

Explanation:

Hello!

In this case, since we have the amount of molecules of this this compound, we are able to compute the moles out there by using the Avogadro's number:

$mol=7.02x10^{23}molec*\frac{1mol}{6.022x10^{23}molec}=1.17mol$

Which correspond to the moles of X2. Then, by using the mass we are able to compute the molar mass of X2:

$MM=\frac{296g}{1.17mol}\\\\MM=254g/mol$

It means that the atomic mass of X halves the molar mass of X2, which is then d. 127 g/mol.

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