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5 December, 09:10

Two changes are described below.

A. Ice melts to form water.

B. Sugar cubes dissolve in hot coffee.

Which statement is true about the two changes?

Both are chemical changes because there is a change in the composition of ice and sugar.

Both are physical changes because there is a change in the physical states of ice and sugar.

Ais a physical change due to a change of state, but B is a chemical change because new molecules are formed.

A is a chemical change due to a change of state, but B is a physical change because new molecules are formed.

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Answers (1)
  1. 5 December, 12:23
    0
    Both are physical changes because there is a change in the physical states of ice and sugar.

    For an easy understanding; physical change can be reversed back into its original state whereas chemical changes are irreversible.
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