Which law of chemical combination?
1.08 gram of wire was allowed to react with nitric acid. The resulting solution was dried and ignited when 1.35 gram of copper oxide was obtained. In another experiment 2.3 gram of copper oxide was heated in presence of Hydrogen yielding 1.84 gram of copper.The above data is in accordance with the law of .
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1 solution
Both the sample have the same composition of Copper and Oxygen . ( Copper = 80% , Oxygen = 20%) Hence the data is in accordance with law of constant proportion.