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Agata [3.3K]
3 years ago
9

Warm air above large bodies of water rises into the atmosphere, carrying with it water vapor that forms clouds. Likewise, as air

in the upper atmosphere cools, it falls back to the lower atmosphere, where it is warmed once again. This cycle of atmospheric heat transfer is an example of?
Chemistry
1 answer:
notka56 [123]3 years ago
8 0

Answer:

Convection?

Explanation:

The circulation of heat currents?

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Nicole has a 5 lb bag of carrots and a 2 oz bag<br>of carrots. How much does Nicole have in total?​
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Answer:

5 pounds 2 ounces.

Explanation:

1 pound = 16 ounces

So just add the 2 ounces to the pounds.

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3 years ago
IS THIS A BALANCED EQUATION <br> MgCl2 + Na2O -- &gt; MgO + 2 NaCl
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In 1909 Fritz Haber discovered the workable conditions under which nitrogen, N2(g), and hydrogen, H2(g), would combine using to
labwork [276]

Answer : 51.8 g of nitrogen are needed to produce 100 grams of ammonia gas.

Solution : Given,

Mass of NH_3 = 100 g

Molar mass of NH_3 = 27 g/mole

Molar mass of N_2 = 28 g/mole

First we have to calculate moles of NH_3.

\text{ Moles of }NH_3=\frac{\text{ Mass of }NH_3}{\text{ Molar mass of }NH_3}= \frac{100g}{27g/mole}=3.7moles

The given balanced chemical reaction is,

N_2(g)+3H_2(g)\rightarrow 2NH_3(g)

From the given reaction, we conclude that

2 moles of NH_3 produced from 1 mole of N_2

3.7 moles of NH_3 produced from \frac{1mole}{2mole}\times 3.7mole=1.85moles of N_2

Now we have to calculate the mass of N_2.

Mass of N_2 = Moles of N_2 × Molar mass of N_2

Mass of N_2 = 1.85 mole × 28 g/mole = 51.8 g

Therefore, 51.8 g of nitrogen are needed to produce 100 grams of ammonia gas.

5 0
3 years ago
What causes the sugar to dissolve in water?
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Answer:

Sugar dissolves in water because energy is given off when the slighty polar sucrose molecules form intermoleeular bonds with the polar water molecules.

Explanation:

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