1.

Fill in the blanks.(a) The process of a liquid changing into a solid is called.................(b) A change, which alters the composition of a substances, is known as a................... change.(c) There is no change in the.................... of the substance during a physical change.(d) The reaction in which energy is evolved is called.......................

Answer»

(a) The process of a liquid changing into a solid is called freezing.

(b) A change, which alters the composition of a substances, is known as a chemical change.

(c) There is no change in the composition of the substance during a physical change.

(d) The reaction in which energy is evolved is called exothermic reaction.



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