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Lostsunrise [7]
3 years ago
6

Is it called when a substance enters a gaseous phase without boiling?

Chemistry
2 answers:
Helen [10]3 years ago
3 0

Answer:

its called sublimation

algol133 years ago
3 0

Answer:

Boiling is a phase transition from the liquid phase to the gas phase that ... in what is called the “escaping tendency” of the molecules from the phase. ... into the gas phase from a solid or liquid by placing the substance in a closed, ... Gradually, Pw will rise as molecules escape from the liquid phase and enter the vapor phase.

Explanation:

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A gas that effuses through a porous cylinder 1.87 times faster than chlorine gas. what is the molar mass and identity.
Rufina [12.5K]
From the Graham's law of effusion;
R1/R2 = √MM2/√MM1
Molar mass of chlorine gas is 71
Therefore;
1.87= √ 71 /√mm1
= 1.87² = 71/mm1 
mm1 = 71/1.87²
         = 71/3.4969
         = 20.3
Thus, the molar mass of the other gas is 20.3 , and i think the gas is neon
6 0
3 years ago
I have 345mL of a 1.5M NaCl solution. If I boil the water until the volume of the solution is 250mL, what will the molarity of t
Karo-lina-s [1.5K]
Answer is
C. 2.07 M


For explanation

M1V1 = M2V2

M2 = (M1V1)/V2

M2 = (1.5M x 345ml) / 250 ml

:. M2 = 2.07 M
8 0
3 years ago
Near the surface of a liquid, fast-moving particles can break free and become a gas.
Nookie1986 [14]
This statement is True! Lets think about it... When water boils, the water doesnt evaporate from the bottom of the bowl it evaporates from the top! 
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6 0
3 years ago
An irreversible change would be?
klemol [59]

Answer:

A. Chipping ice to flakes

Explanation:

You can't reverse the ice becoming flakes. They will stay like that until they melt

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madam [21]
The answer would be :Use less energy
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