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What do these two changes have in common?
building a tower out of magnetic blocks
water vapor condensing on a bathroom mirror
Select all that apply.
Both are only physical changes.
Both are chemical changes.
Both are caused by heating.
Both are caused by cooling.
Select all that apply.

Respuesta :

pstnonsonjoku

Building a tower out of magnetic blocks and water vapor condensing on a bathroom mirror are only physical changes.

A physical change is easily reversible. It does not involve a change in the composition of a substance.

A tower built out of magnetic blocks can easily be pulled apart and water that condensed on a bathroom mirror can easily change back to vapour by heating.

All these are possible because the both processes are only physical changes.

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