Copper reacts with oxygen to form two oxides X and Y. On analysis, 1.535g of X yielded 1.365g of copper;1.450g of Y yielded 1.160g of copper.
(i) Determine the chemical formula of X and Y
(ii) Calculate the mass of copper which can react with 0.500g of oxygen to yield X and Y
(iii) which of the chemical laws of combination is illustration by the result above?
(iv) A metal M forms two oxides containing 11.1% and 20.0% of oxygen. Show that these figures agree with the law of multiple proportions
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