define the following terms (a)reversible change (b) Irreversible change (c) chemical change (d) physical change
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Chemical Change is a change that occurs when a substance combines with other to form a new substance.
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a) Reversible changes are changes that can be undone or reversed.
b) An irreversible change is when something cannot be changed back to its original form.
c) A chemical change happens when one chemical substance is transformed into one or more different substances, such as when iron becomes rust.
d) Physical changes are changes affecting the form of a chemical substance, but not its chemical composition.
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b) An irreversible change is when something cannot be changed back to its original form.
c) A chemical change happens when one chemical substance is transformed into one or more different substances, such as when iron becomes rust.
d) Physical changes are changes affecting the form of a chemical substance, but not its chemical composition.
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