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vampirchik [111]
3 years ago
8

Which of these phase changes does NOT involve changing a liquid into a gas?

Chemistry
1 answer:
zzz [600]3 years ago
8 0


The answer is sublimation.

Sublimation is the chemical process whereby a solid turns into a gas without first becoming a liquid.

The word sublimation comes from the Latin word sublimare which means "raised to a higher status."

Examples of sublimation include surface layer of snow and ice turning into steam or fog without melting and  dry ice which is the solid form of carbon dioxide  which also undergoes sublimation.

The low temperature and sublimation makes dry ice an effective coolant or cooling agent . One of its main advantages is that it has a lower temperature than water ice and also does not leave any residue.




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Two atoms with the same number of protons but a different number of neutrons are
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They are called isotopes.

Example of isotopes are Hydrogen and deuterium.
Hydrogen is 1 proton and 0 neutrons.
Deuterium is 1 proton and 1 neutron
6 0
3 years ago
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Nutka1998 [239]
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6 0
3 years ago
WILL GIVE BRAINLIEST!
Oliga [24]

Answer:

A

Explanation:

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Hope this helps.

4 0
2 years ago
Think of a bath sponge. What happens when you squeeze it? How could you explain it from the point of view of the state of the ag
harkovskaia [24]

Answer:

What happens when it is squeezed is that its volume increases, the pressure of the material increases.

Explanation:

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3 0
3 years ago
Calculate the molarity of a solution that contains 0.250 moles of kf in 0.500 l of water
MakcuM [25]
Molarity can be defined as the number of moles of solute in 1 L of solution.

M = n/V

Where M is the molarity of the solution (M or mol/L), n is the moles of the solute (mol) and V is the volume of the solution (L).

Here, solute is KF.

n = <span>0.250 mol
</span>V = 0.500 L
M = ?

By applying the formula,
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Hence, the molarity of KF solution is 0.500 mol/L.

4 0
3 years ago
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