Percentage of Cu is minimum in

Calculate the percentage of Cu in CuO

A sample of impure cuprous oxide contains 66.67% copper, by ,mass. What is the percentage of pure Cu_2 O in the sample? (Cu=63.5)

A non-stoichiometric compound Cu_(1.8)S is formed due to incorporation of Cu^(2+) ions in the lattice of cuprous sulphide. What percentage of Cu^(2+) ions the total copper centent is present in the compound

The percentage of soil volume occupied by pore spaces is called porosity of soil . It is minimum in

Which ore is having maximum percentage of 'Cu' by weight?

The minimum percentage of impurities by domestic sewage in the water is