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Questions and Answers
Which type of change is reversible?
Which type of change is reversible?
- Desirable change
- Physical change (correct)
- Slow change
- Temporary change
Which type of change involves the formation of new substances?
Which type of change involves the formation of new substances?
- Chemical change (correct)
- Permanent change
- Fast change
- Reversible change
Which of the following is an example of a physical change?
Which of the following is an example of a physical change?
- Cooking food
- Melting of butter (correct)
- Lighting a matchstick
- Ripening of fruit
Which type of change is mostly irreversible?
Which type of change is mostly irreversible?
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Which of the following is an example of a chemical change?
Which of the following is an example of a chemical change?
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Study Notes
Types of Changes
- Reversible change: physical change, where the original substance can be recovered
- Change involving the formation of new substances: chemical change
- Example of a physical change: boiling water to form steam, and then condensing it back to water
- Mostly irreversible change: chemical change, as it is difficult to recover the original substances
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