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2. What are irreversible physical change and reversible chemical change? Give twoexamples of each.

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Final answer:

Irreversible physical change refers to a change in the physical properties of a substance that cannot be reversed, while a reversible chemical change refers to a change in the chemical nature of a substance that can be reversed. Examples of each include the breaking of a glass bottle and the formation of water from hydrogen and oxygen.

Step-by-step explanation:

An irreversible physical change is a change in the physical properties of a substance that cannot be reversed, such as the melting of ice or the breaking of glass. A reversible chemical change is a change in the chemical nature of a substance that can be reversed, such as the formation of rust or the burning of a candle.

Examples of irreversible physical changes:

  • Breaking a glass bottle
  • Burning wood

Examples of reversible chemical changes:

  • Formation of water from hydrogen and oxygen
  • Reacting hydrochloric acid with sodium hydroxide to form salt and water

Learn more about Physical and Chemical Changes

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