Question

16 multiple choice 1 point what phase change is involved when a gas turns into a solid freezing melting condensation deionization vaporization/evaporation sublimation deposition ionization clear my selection

Explanation:

To solve this, we recall the definitions of each phase change:

• Freezing: Liquid to Solid.
• Melting: Solid to Liquid.
• Condensation: Gas to Liquid.
• Deionization: Not a phase change (removes ions from a solution).
• Vaporization/Evaporation: Liquid to Gas.
• Sublimation: Solid to Gas.
• Deposition: Gas to Solid (this matches the question: Gas to Solid).
• Ionization: Not a phase change (formation of ions).

So the correct option is the one where Gas turns to Solid, which is Deposition. But wait, looking at the options again, maybe I made a mistake? Wait no, let's recheck:

Wait, the options include "Deposition"? Wait the options given are: Freezing, Melting, Condensation, Deionization, Vaporization/Evaporation, Sublimation, Deposition, Ionization.

Wait, the question is Gas to Solid. Deposition is the phase change from gas directly to solid. So the correct option is Deposition. But wait, maybe the options were misread? Wait no, let's check each:

Freezing: Liquid → Solid. No.

Melting: Solid → Liquid. No.

Condensation: Gas → Liquid. No.

Deionization: Not phase change. No.

Vaporization/Evaporation: Liquid → Gas. No.

Sublimation: Solid → Gas. No.

Deposition: Gas → Solid. Yes.

Ionization: Not phase change. No.

Wait, but maybe the original question had a typo? Wait no, the user's question is "What phase change is involved when a GAS turns into a SOLID". So the correct answer is Deposition, so the option with Deposition.

Wait, but let's check the options again. The options are:

• Freezing

• Melting

• Condensation

• Deionization

• Vaporization/Evaporation

• Sublimation

• Deposition

• Ionization

So the correct option is Deposition, so the answer is the option with "Deposition".

Answer:

Deposition (the option labeled "Deposition" among the choices)