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Question
- categorization 8.7 points sort the statements based on the category they represent. loses energy no answers chosen possible answers evaporating freezing melting condensation gains energy no answers chosen molecules move slower & closer together molecules move faster & further apart
Step1: Understand energy - change in phase
When a substance changes phase, energy is either gained or lost. Gaining energy usually involves a transition to a more energetic state, and losing energy involves a transition to a less - energetic state.
Step2: Analyze phase - change processes for losing energy
Freezing is a process where a liquid changes to a solid. Molecules move slower and closer together. Condensation is a process where a gas changes to a liquid. In both cases, the substance loses energy.
Step3: Analyze phase - change processes for gaining energy
Evaporating is a process where a liquid changes to a gas. Melting is a process where a solid changes to a liquid. In both cases, the molecules move faster and further apart, and the substance gains energy.
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Loses Energy: freezing, condensation, molecules move slower & closer together
Gains Energy: evaporating, melting, molecules move faster & further apart