Water obtained by distillation is found to contain hydrogen and oxygen in the ratio 1:8 by mass. it is also found that water obtained by heating washing soda also found to possess hydrogen and oxygen in the same ratio. These results are summarised as
A. Law of conservation of mass
B. Law of conservation of energy
C. Law of conservation of momentum
D. Law of definite proportion
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Law of conservation of energy
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B
Law of conservation of energy
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