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AveGali [126]
3 years ago
7

Name two fluid technologies that make use of air

Chemistry
1 answer:
nika2105 [10]3 years ago
7 0

Answer: Refrigerator and fire extinguisher

Explanation: Refrigerator:An evaporator fan draws air from the refrigerator and blows it over the evaporator coils. The liquid refrigerant absorbs heat from the air and the air blows back into the refrigerator at a lower temperature, cooling the refrigerator. The liquid refrigerant starts to vaporize as it heats up and moves to the compressor.

Fire extinguisher:They work by smothering the fire: when you put a layer of powder or foam on the fire, you cut the fuel off from the oxygen around it, and the fire goes out. Carbon dioxide (CO2) extinguishers contain a mixture of liquid and gaseous carbon dioxide (a nonflammable gas).

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3 years ago
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Heating oxygen difluoride gas yields oxygen gas and fluorine gas? Whats the balance chemical equation for this?
N76 [4]
2OF2(g) —> O2(g) + 2F2(g) hope that helps
5 0
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2. Calculate the mass of K in 90g of KOH​
ValentinkaMS [17]

KOH = 90g

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K = 40g/mol

57g/mol contains 90 g

40g/mol will contain?

= 63.15 g

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8 0
2 years ago
4.Calculate the volume of 40g of Helium (He) at rtp.
Oksana_A [137]

Answer:

2.24dm³

Explanation:

Given parameters:

Mass of He = 40g

Unknown:

Volume of Helium  = ?

Solution:

To solve this problem, we convert the given mass to number of moles.

   Number of moles  = \frac{mass}{molar mass}  

   molar mass of He  = 4g/mol

  Number of moles  = \frac{4}{40}   = 0.1mole

So;

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                0.1 mole of He will occupy a volume of 0.1 x 22.4 = 2.24dm³

4 0
3 years ago
How could you separate a mixture of acetone and a-naph<br>thol
Ganezh [65]
You could use distillation.

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