Question

What may happen when?
(i) Metal sodium is dropped on water
(i) An iron nail is dipped in the solution of copper sulphate?
(iii) Zinc is added to hydrochloric acid?
(iv) Sulphur dioxide gas is dissolved in water?
(v) Magnesium oxide is dissolved in water?


please reply fast​

Answer 1

Answer:

sodium react violently with water

iron displaces copper from its salt solution

Zn + HCl gives ZnCl2 + H2

MgO + H20 gives Mg(OH)2