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lora16 [44]
2 years ago
10

Why is desertification a problem?

Chemistry
2 answers:
Gnesinka [82]2 years ago
6 0
Because if all the trees and grasslands are to disappear and turn into deserts then there would be no oxygen for us
Vitek1552 [10]2 years ago
3 0

It's a problem because: breathing air contaminated with sand particles can be hazardous

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What is the volume, in liters, of 1.40 mol of oxygen gas at 20.0°C and 0.974 atm?
topjm [15]

Answer:

V = 34.55 L

Explanation:

Given that,

No of moles, n = 1.4

Temperature, T = 20°C = 20 + 273 = 293 K

Pressure, P = 0.974 atm

We need to find the volume of the gas. It can be calculated using Ideal gas equation which is :

PV=nRT

R is gas constant, R=0.08206\ L-atm/mol-K

Finding for V,

V=\dfrac{nRT}{P}\\\\V=\dfrac{1.4\times 0.08206\times 293}{0.974 }\\\\V=34.55\ L

So, the volume of the gas is 34.55 L.

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3 years ago
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The smallest ionic radius among the following. <br> Li<br> Mg<br> Na+<br> be+
dimaraw [331]
The correct answer is Be+

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5 0
2 years ago
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Verdich [7]

Answer:

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Vikentia [17]

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