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Elodia [21]
3 years ago
10

Sodium has more valence electrons than magnesium. True or False

Chemistry
2 answers:
harkovskaia [24]3 years ago
7 0
False magnesium is in group 2 and has 2 outer electrons where as sodium is in group 1 and therefore only has 1 valence electron.
Tom [10]3 years ago
6 0
True. I hope this helps!

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A sample of gas has a density of 0.53 g/L at 225 K and under a pressure of 108.8 kPa. Find the density of the gas at 345 K under
sukhopar [10]

Answer:

\rho _2=0.22g/L

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Hello!

In this case, since we are considering an gas, which can be considered as idea, we can write the ideal gas equation in order to write it in terms of density rather than moles and volume:

PV=nRT\\\\PV=\frac{m}{MM} RT\\\\P*MM=\frac{m}{V} RT\\\\P*MM=\rho RT

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\rho _2=\frac{\rho _1T_1P_2}{P_1T_2}

Now, we plug in to obtain:

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Regards!

8 0
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