Question

A physical change involves
(a) formation of a chemically new substances
(b) a net energy change
in the complete cycle (c)no change in the mass of the substances
(d) an irreversible change
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Answer 1

Answer:

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Explanation:

AN IRREVERSIBLE CHANGE

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Answer 2

physical change is any change in matter that involves the substance going from one physical state to another. ... Examples of Physical changes: 1. Ice melting involves a change from a solid to a liquid and the substances maintain the properties of water because the molecules never change.

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