_____________________ solid waste product of plants containing calcium carbonate crystals.
Waste products of plants
The solid waste product of plants that contain calcium carbonate crystals
Question 2
Sewage is mainly a (a) liquid waste (b) solid waste (c) gaseous waste (d) a mixture of solid and gas
Describe giving all practical details, how would you prepare :
(a) copper sulphate crystals from a mixture of charcoal and black copper oxide,
(b) zinc sulphate crystals from zinc dust (powdered zinc and zinc oxide),
(c) sodium hydrogen carbonate crystals.
(d) Calcium sulphate from calcium carbonate.