during which changes of state does the motion of the atoms decrease?\n○ melting and deposition\n○ freezing…

during which changes of state does the motion of the atoms decrease?\n○ melting and deposition\n○ freezing and condensation\n○ condensation and evaporation\n○ vaporization and sublimation

during which changes of state does the motion of the atoms decrease?\n○ melting and deposition\n○ freezing and condensation\n○ condensation and evaporation\n○ vaporization and sublimation

Answer

Brief Explanations:

To determine when atom motion decreases, we analyze state changes:

  • Freezing: Liquid to solid (particles slow, less motion).
  • Condensation: Gas to liquid (particles slow, less motion).
  • Other options: Melting (solid→liquid, motion increases), Evaporation/Vaporization (liquid→gas, motion increases), Sublimation (solid→gas, motion increases), Deposition (gas→solid, but paired with melting (wrong) in first option. So "freezing and condensation" is correct.

Answer:

B. freezing and condensation