Question

is there any chance in mass when a substance changes its state ? explain with examples​

Answer 1

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When a substance changes its state ,there will not be any change in the mass of substance .

$for-example$  , if we change 100 grams of water (liquid) to ice(solid) , the mass of ice will be same i.e., 100 grams . This showsthere is no change in the mass even if a substance changes its state .

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Answer 2

here your answer dear..............

change from a substance is a physical state and another is called Change of state......
ex
liquid