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Zanzabum
2 years ago
12

What will most likely happen when a warmer air mass exists above a polar ice sheet?

Chemistry
2 answers:
Andre45 [30]2 years ago
8 0
I believe it is "The temperature of the ice sheet will be lowered" because it will most likely lower just a bit due to the heat. It's not going to fully melt but it will lower just a bit.
 Plus I like your profile pic.
adelina 88 [10]2 years ago
7 0

Answer: Option (b) is the correct answer.

Explanation:

When warm air will rise above a polar ice sheet then it means due to high kinetic energy between the warm air molecules they will collide rapidly and frequently from one place to another.

As a result, warm air molecules will expand at a faster rate. As polar ice sheet is colder in nature therefore, it will absorb the heat from warm air.

Hence, the polar ice sheet will start to melt as absorption of heat will generate kinetic energy between the molecules of polar ice sheet.

Thus, we can conclude that heat will be transferred from the air mass to the ice.

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Hydrogen gas was collected by water displacement. what was pressure of the h2 collected if the temperature was 26°c?
Vedmedyk [2.9K]
The ideal gas law may be written as
p= \frac{\rho R T}{M}
where
p = pressure
ρ =density
T = temperature
M = molar mass
R = 8.314 J/(mol-K)

For the given problem,
ρ = 0.09 g/L = 0.09 kg/m³
T = 26°C = 26+273 K = 299 K
M = 1.008 g/mol = 1.008 x 10⁻³ kg/mol

Therefore
p= \frac{(0.09 \, kg/m^{3})*(8.314 \, J/(mol-K))*(299 \, K)}{1.008 \times 10^{-3} \, kg/mol} =2.2195 \times 10^{5} \, Pa

Note that 1 atm = 101325 Pa
Therefore
p = 2.2195 x 10⁵ Pa
   = 221.95 kPa 
   = (2.295 x 10⁵)/101325 atm
   = 2.19 atm

Answer:
2.2195 x 10⁵ Pa (or 221.95 kPa or 2.19 atm)

4 0
3 years ago
Four moles of hydrogen chloride (HCl) gas react with one mole of oxygen (O2) gas to produce two moles of chlorine gas (Cl2) and
Marianna [84]

Answer:

4HCl(g) + O₂(g) →  2Cl₂(g) + 2H₂O(g)

Explanation:

In order to find the equation we should state:

The reactants → Hydrogen chloride (HCl) and oxygen (O₂)

The products → Chlorine gas (Cl₂) and water gas (H₂O)

The balanced equation is:

4HCl + O₂  →  2Cl₂ + 2H₂O

It is a redox reaction, where the oxygen reduces to make water, and the chloride is oxidized to produce elemental chlorine.

7 0
3 years ago
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Which of the following describes the expected solubility of benzoic acid?
Igoryamba
I because it is an acid, it should be soluble in hexane
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3 years ago
Is the answer A, B, C, or D?
Sunny_sXe [5.5K]

Answer:

C

Explanation:

C because there is more in it than the rest of the idems

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3 years ago
Which of the following options would be the best for dissolving PbBr2(s)?
Nezavi [6.7K]

Answer:

2) Add a solution of NaBr

Explanation:

Lead (II) bromide is an inorganic powdery substance that has a solubility in water of 0.973 g/100 mL at 20°C. It is insoluble in alcohol but is soluble in alkali, ammonia, NaBr, and KBr

PbBr₂ is slightly soluble in ammonia, and it reacts with NaOH to produce Pb(OH)₂ and NaBr

Therefore, the best solution for dissolving PbBr₂(s) is NaBr

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