3 years ago

Brainly answer will be given. Thankyou

Chemistry

1 answer:

Helen [10]3 years ago

7 0

A) Na because it has a boiling point of 883 and alkali metals react with water.

B) Be because it is a metal in group 2 and period 2.

C) Ne because it is a noble gas with a boiling point of -246

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Answer anybody, confused

jeka57 [31]

I'm just taking a self educated guess of A sorry if I'm wrong :C

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lesantik [10]

Standard temperature is 273 K

Standard pressure is 1 atm

We use the ideal gas equation to find out density of nitrogen gas in g/L

Ideal gas equation:

$PV = nRT\\ PV = (\frac{Mass}{Molar mass)}RT\\ P(Molar mass) = (\frac{Mass}{Volume})RT\\ \frac{Mass}{Volume}=\frac{P(molar mass)}{RT} \\ Density = \frac{P(Molar mass)}{RT}$

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Answer:

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