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GenaCL600 [577]

2 years ago

5

Energy is transferred from the sun to Earth mainly by

1 answer:

expeople1 [14]2 years ago

5 0

Answer:

electromagnetic waves

Explanation:

Radiation is the transfer of heat energy through space. Most of them are sent through electromagnetic waves.

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Which of these observations are not explained by kinetic-molecular theory?

kondaur [170]

The question's incomplete unfortunately, which observations?

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3 years ago

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A measure of the tendency of the molecules of a liquid to escape into the gas phase is the liquid's

Savatey [412]

The answer you are looking for is <span>Vapor Pressure

</span>Vapor pressure is the pressure of vapor in contact with it's liquid. Vapor is a substance suspended into the air like a gas from a liquid. This matches your question. Therefore, Vapor pressure is the correct answer from the given choices.

I hope this helped. Have a great night!

6 0

3 years ago

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Differences in frames of reference are especially significant when ________. a. working on improving one’s listening skills b. c

OlgaM077 [116]

Answer:

hi :3

Explanation:

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4 0

4 years ago

If 26.2 mL of AgNO3 is needed to precipitate all the Cl− ions in a 0.785-mg sample of KCl (forming AgCl), what is the molarity o

sweet-ann [11.9K]

<u>Answer:</u>

<em>The molarity of the $AgNO_3$ solution is $4.02 \times 10^4 M$ </em>

<em></em>

<u>Explanation:</u>

The Balanced chemical equation is

$1AgNO_3 (aq) +1KCl (aq) > 1 AgCl (s)+1KNO_3 (aq)$

Mole ratio of $AgNO_3$ : KCl is 1 : 1

So moles $AgNO_3$ = moles KCl

$Moles KCl = \frac {mass}{molarmass}$

$= \frac {0.785 mg}{(39.1+35.5 g per mol)}$

$= \frac {0.000785 g}{74.6 g per mol}$

$= 0. 0000105 mol KCl$

$= 0.0000105 mol AgNO_3$

So Molarity

$= \frac {moles of solute}{(volume of solution in L)}$

$= \frac {0.0000105 mol}{26.2 mL}$

$=\frac {0.0000105 mol}{0.0262 L}$

= 0.000402M or mol/L is the Answer

(Or) $4.02 \times 10^4 M$ is the Answer

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3 years ago

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3 years ago