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CBSE Notes 2011-2012

Which of the following illustrates the law of conservation of mass ?

Multiple choice question

Which of the following illustrates the law of
conservation of mass ?

unknown

12 g of CO reacts with 32 g of 02 to form 44 g of CO.

unknown

1.70 g of AgN03 reacts with 0.01 mol of HC1 to
form 1.435 g of AgCl and 0.63 g of HNOs

unknown

12 g of C is heated in vacuum and cooling there
is no change in mass

unknown

100 g of ice forms 100 g of water liquid on melting.