A 10.0 g sample of an oxide of copper forms metallic copper and `1.26` g of water when heated in a stream of hydrogen. What is the mass percent of copper in this oxide?

What type of oxide is copper oxide?

In an experiment 2.16 g of copper was dissolved in nitric acid followed by ignition of the nitrate, which gave 2.70 g of copper oxide. In another experiment 1.46 g of copper on heating in a curent of air gave 1.83 g of copper. Oxide. The percentage of copper in copper oxide is _____________ and the abvoe data illustrate the law of ____________.

In an experiment, 2.16 g of copper was dissolved in nitric acid followed by ignition of the nitrate, which gave2.70 g of copper oxide. In another experiment, 1.46 g of copper on heating in a current of air gave 1.83 g of copper oxide. The percentage of copper in copper oxide is______ and the above data illulstrate the law of _________.

0.1203 gm of copper is deposited on a copper plate of mass 9.2 g. What is the total mass of the copper plate?

Copper forms two oxides . For the same amount of copper, twice as much oxygen was used to form first oxide than to form second one. What is the ratio of the valencies of copper in first and second oxides ?

Copper forms two oxides. For the same amount of copper, twice as much oxygen was used to form first oxide than to form second one. What is the ratio of the valencies of copper in first and second oxides ?

Copper forms two oxides. For the same amount of copper, twice as much oxygen was used to form first oxide than to form second one. What is the ratio of the valencies of copper in first and second oxides?