When hydrogen is passed over copper oxide, copper and steam are formed. Write a balanced equation for this reaction and state which of the chemicals are :
`{:((i)"elements",(ii),"compounds",(iii),"reactants"),((iv)"products",(v),"metals",(vi),"non-metals"):}`

Answer

`H_(2)+CuOtoCu+H_(2)O`
`{:((i),"Element":H_(2)and Cu,(ii),"Compounds":CuO and H_(2)O),((iii),"Reactants":H_(2)and CuO,(iv),"Products":Cuand H_(2)O),((v),"Metal":Cu,(vi),"Non-metal":H_(2)):}`