Which process shows that a substance can change its appearance?

Dissolving sugar in water

Melting ice to water

Breaking a glass

All of the above

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Q1.

Which of the following is a physical change?

Q2.

What happens when air is blown into lime water?

Q3.

When ice melts, what type of change occurs?

Q4.

If two gases react and produce liquid water, what type of change is this?