Question

Answer the following questions in short:
1. Give two examples each of changes of appearance and position.​

Answer 1

Answer:

The melted ice cube may be refrozen, so melting is a reversible physical change. Physical changes that involve a change of state are all reversible. Other changes of state include vaporization (liquid to gas),freezing (liquid to solid), and condensation (gas to liquid). Dissolving is also a reversible physical change.

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