有關copper(II) sulphate

咩係copper(II) sulphate

Copper(II) sulphate is not an acid.
Since it has an ionic structure (( Cu2+(SO4)2- )) , it can be used as an electrolyte if it is not involved in the reaction.
It is blue colour in aqueous solution due to the copper(II) ion.

咩叫heating metal oxide with carbon powder
Take the ore Haematite ( iron(III) oxide ) as an example.
iron(III) oxide + carbon --> iron + carbon dioxide.
This is heating metal oxide with carbon powder

Hope this can help u!!

2008-04-12 17:50:58 補充：
p.s.
Heating metal oxide with carbon powder, the products formed will be a metal and carbon dioxide.