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Firdavs [7]
3 years ago
12

(A)What type of cloud forms at high altitudes and is wispy and feathery.

Chemistry
2 answers:
Marina CMI [18]3 years ago
6 0

Answer:

Answer A)

Circus clouds are the highest of all clouds and made of ice crystal.

Circus clouds have no visible precipitation.

Answer B)

Because when the warm, moist air rises up and gets cool, water vapor condenses on tiny particles to form liquid water or ice crystal and form cloud.  

Answer C)

Precipitation is a fall of moisture from the atmosphere in any form. it is an important input to hydrology.

Floods and droughts are directly related to precipitation.  

posledela3 years ago
5 0
A) Answer D. Clouds forming high in the atmosphere are referred to as cirrus, cirrostratus, and cirrocumulus. 

B) Clouds tend to form at higher altitudes because as<span> air rises, the moisture in it slowly reaches its saturation point and when this happens, tiny crystals of water start to condense and form clouds.

C) Precipitation: Water that falls to the ground from clouds, such as in rain, snow, sleet, or hail.</span>
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What is the mass of 1.2 x 1023 atoms of arsenic?
Gre4nikov [31]

Answer:

14.93 g

Explanation:

First we <u>convert 1.2 x 10²³ atoms of arsenic (As) into moles</u>, using <em>Avogadro's number</em>:

  • 1.2 x 10²³ atoms ÷ 6.023x10²³ atoms/mol = 0.199 mol As

Then we can<u> calculate the mass of 0.199 moles of arsenic</u>, using its<em> molar mass</em>:

  • 0.199 mol * 74.92 g/mol = 14.93 g

Thus, 1.2x10²³ atoms of arsenic weigh 14.93 grams.

6 0
3 years ago
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Answer:

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3 years ago
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What is more electronegative? <br> O or Br
cluponka [151]

Answer:

O

Explanation:

O = 3.44

Br = 2.96

8 0
2 years ago
Which of the following changes will always be true for a spontaneous reaction? (3 points)
Alika [10]
Answer is: <span>- delta G.
</span>The change in Gibbs free energy (ΔG), at constant temperature and pressure, is: <span>ΔG=ΔH−TΔS.
</span>ΔH<span> is the change in enthalpy.
</span>ΔS is change in entropy.
T is temperature of the system.
When ΔG is negative, a reaction (<span>occurs without the addition of external energy)</span><span> will be spontaneous (</span>exergonic).

3 0
3 years ago
What is the percent of hydrogen by mass in HNO3? (Molar<br> mass of HNO3 = 630 g/mol)
xxMikexx [17]

Answer:

63.01284 g/mol

Explanation:

This compound is also known as Nitric Acid.

Convert grams HNO3 to moles or moles HNO3 to grams

Molecular weight calculation:

1.00794 + 14.0067 + 15.9994*3

Percent composition by element

Element Symbol Atomic Mass # of Atoms Mass Percent

Hydrogen H 1.00794 1 1.600%

Nitrogen N 14.0067 1 22.228%

Oxygen O 15.9994 3 76.172%

6 0
3 years ago
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