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alisha [4.7K]
3 years ago
12

What are the two reservoirs that contain almost all of Earth's fresh water?

Chemistry
1 answer:
Alex787 [66]3 years ago
7 0

Answer:C

Explanation:

c is right because it is

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timofeeve [1]
Nitrogen has 5 valence electrons (ve-), so a diatomic nitrogen molecule will have twice as many, 10 valence electrons. Then, just draw electrons in pairs of 2 until you both get ride of all of them (reach 0) and you fill every atom (eight electrons each). It can be drawn either way, the important thing is that there are 3 electron pairs shared between the two atoms.

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What is the mass, in grams, of 50.0L of N2 at STP?
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Hey there!:

Molar mass N₂ = 28.0134 g/mol

28.0134 g ------------------- 22.4 L (at STP )

mass  N₂ -------------------- 50.0 L

mass N₂ = 50.0 x 28.0134 / 22.4

mass N₂ = 1400.67 / 22.4

mass N₂ = 62.529 g

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