Question

3. 1.2 g of copper powder on heating gave 6.0 g of copper oxide. In another experiment copper oxide contained 20% oxygen. Show that these results illustrate the law of constant composition. solve it
​

Answer 1

Explanation:

hope it helps you bro Mark me as brailenst olz

Answer 2

mass of oxygen =mass of copper oxide - mass of copper

                           =6-1.2

                             = 4.8g

mass of copper : mass of ocygen

         1.2             :            4.8

so the ratio is 1:4

hope it helps

plz mark brainlest