the answer to this question is B
Answer:
Take one example: Zinc is extracted from copper sulphate if a little bit of zinc is dissolved in copper sulphate solution. Copper sulphate fades in blue and the solution of zinc sulphate is coloured. Zinc is therefore more reactive than copp
Explanation:
3*40+3*2*35.5=333* Avogadro’s number =
1.98*10^25
