2 years ago

How does the ionosphere affect radio frequencies?

1 answer:

6 0

Due to the ability of ionized atmospheric gases to refract high frequency (HF, or shortwave) radio waves, the ionosphere can reflect radio waves directed into the sky back toward the Earth. Radio waves directed at an angle into the sky can return to Earth beyond the horizon.

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What is the chemical formula for acetic acid?

liberstina [14]

CH3COOH

Explanation:

hope I helped

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Property is part of a system that does not depend on the size or the amount is called....

Reil [10]

The answer is A.extensive.

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You have 7.86 x 10^23 molecules of NaCl. This would be equal to ___ grams of NaCl.

sergij07 [2.7K]

$7.86 \times 10 {}^{23} atoms \\ \frac{7.86}{6.022} \times \frac{10 {}^{23} }{ {10}^{23} } = 1.305\: moles$

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2 years ago

**98 POINTS**

Andrei [34K]

OP already did it - CONGRATS!!

here are the steps 2 get the same ans:

(NH4)2 CO3 has 2x N, 8x H, 1x C and 3x O per molecule

so its molecular mass = 2x14 + 8x1 + 1x12 + 3x16

=28+8+12+48

=96g

of that 96g, 8x1=8g is due to Hydrogen

so by ratio n proportion, 1.00g will have 1x8/96 = 1/12g = 0.083g of H

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2 years ago

How many moles of aluminum are in 95.0 grams of aluminum

wlad13 [49]

Answer:

26.981538 just looked at it.

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