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Sloan [31]
3 years ago
5

SOMEONE PLS HELP ITS FOR A TEST!!

Chemistry
2 answers:
n200080 [17]3 years ago
8 0
4 is true and 5 is true
Damm [24]3 years ago
6 0

Explanation:

4=true

5. true

hope this helps. good luck with your test.

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Which type of heat exchanger shell and tube or plate heat exchanger is suitable for evaporation?
klasskru [66]

Answer:

shell and tube type heat exchanger

Explanation:

for evaporation the shell and tube type heat exchanger is best suited.

  • in the plate heat exchanger there is gaskets in between every part so this part become weak part in heat echanger and there is possibilities of leakage through this part, there is no such problem in shell and tube type.
  • the plate type cant be used when there is high temperature and high pressure drop but shell and tube type can be used
  • in evaporation there the liquids change into vapors due to which there is sudden change in pressure and in which plate type is not used because there is chances of leakage
5 0
2 years ago
Convert 1.00 us gallon in kilometer (kL)
Murljashka [212]
The answer is 4.54km
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2 years ago
What is the mole fraction of O2O2 in a mixture of 15.1 gg of O2O2, 8.19 gg of N2N2, and 2.46 gg of H2H2
SVETLANKA909090 [29]

Answer:

Mole fraction O₂=  0.43

Explanation:

Mole fraction is the moles of gas/ total moles.

Let's determine the moles of each:

Moles O₂ → 15.1 g / 16 g/mol = 0.94

Moles N₂  →  8.19 g / 14 g/mol = 0.013

Moles H₂  → 2.46 / 2 g/mol = 1.23

Total moles = 2.183

Mole fraction O₂= 0.94 / 2.183 → 0.43

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I really need your help best answer gets the brainiest! please answer its 50 POINTS!
dangina [55]

Answer:

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Explanation:

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Is na20 a stable compound, or an unstable compound?
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Answer:

unstable

Explanation:

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