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Marina86 [1]
3 years ago
5

Please help me I want to be sure I will mark you

Chemistry
2 answers:
defon3 years ago
7 0

Answer:

Probably A.

Explanation:

Its either A or C. A is more probable imo

marissa [1.9K]3 years ago
7 0

Answer:

that's right

Explanation:

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Which of the following phase changes only occurs in solids possessing vapor pressures above atmospheric pressure and at ambient
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<u>Answer:</u> The phase change process in which solids gets converted to gases is sublimation.

<u>Explanation:</u>

For the given options:

<u>Option a:</u>  Condensation

It is a type of process in which phase change occurs from gaseous state to liquid state at constant temperature.

Gas\rightleftharpoons Liquid

<u>Option b:</u>  Melting

It is a type of process in which phase change occurs from solid state to liquid state at constant temperature.

Solid\rightleftharpoons Liquid

<u>Option c:</u>  Sublimation

It is a type of process in which phase change occurs from solid state to gaseous state without passing through the liquid state at constant temperature.

Solid\rightleftharpoons Gas

<u>Option d:</u>  Deposition

It is a type of process in which phase change occurs from gaseous state to solid state without passing through the liquid state at constant temperature.

Gas\rightleftharpoons Solid

Hence, the phase change process in which solids gets converted to gases is sublimation.

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3 years ago
This electron cloud model of aluminum has _______ energy levels with _______ electrons on its outer energy level. A) 1, 2 B) 2,
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Explanation:

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What do elements in the first two columns of the periodic table have in common?
coldgirl [10]

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The answer should be d
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Sugar has a lower melting point than salt because sugar is made of _________.
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