Define the following terms. (a) Reversible change (b) Irreversible change (c) Physical change (d) Chamical change
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Answer : a) reversible change = changes which can be reversing the conditions are called reversible change
b) irreversible change =. changes which cannot be reversed even by changing the condition are called irreversible changes
c) physical change = a change in which only the physical properties of substance (size,colour,texture,state ,shape,etc ) get changed and no new substance are formed is called physical changes
d) chemical change = a change in which the chemical properties and composition of a substance change and a new product is formed is called chemical changes
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b) irreversible change =. changes which cannot be reversed even by changing the condition are called irreversible changes
c) physical change = a change in which only the physical properties of substance (size,colour,texture,state ,shape,etc ) get changed and no new substance are formed is called physical changes
d) chemical change = a change in which the chemical properties and composition of a substance change and a new product is formed is called chemical changes
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