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31-12-2015
Chemistry

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Which type or types of change, if any, can reach equilibrium?(1) a chemical change, only(2) a physical change, only(3) both a chemical and a physical change(4) neither a chemical nor a physical change

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31-12-2015

(3) both a chemical and a physical change can reach equilibrium. For example, an acid-base reaction can achieve equilibrium (chemical change), and a system can achieve dynamic equilibrium (phase changes from liquid to gas, for example), which is a physical change.

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