Chemistry
Complete and balance the following equations.
(a) Na + H2O ⟶ …………… + ……………
(b) Ca + H2O ⟶ …………… + ……………
(c) Mg + H2O ⟶ …………… + ……………
(d) Zn + H2O ⟶ …………… + ……………
(e) Fe + H2O ⟶ …………… + ……………
(f) Zn + HCl ⟶ …………… + ……………
(g) Al + H2SO4 ⟶ …………… + ……………
(h) Fe + HCl ⟶ …………… + ……………
(i) Zn + NaOH ⟶ …………… + ……………
(j) Al + KOH + H2O ⟶ …………… + ……………
Hydrogen
70 Likes
Answer
(a) 2Na + 2H2O ⟶ 2NaOH + H2
(b) Ca + 2H2O ⟶ Ca(OH)2 + H2
(c) Mg + 2H2O ⟶ Mg(OH)2 + H2
(d) Zn + H2O ⟶ ZnO + H2
(e) 3Fe + 4H2O ⇌ Fe3O4 + 4H2
(f) Zn + 2HCl ⟶ ZnCl2 + H2
(g) 2Al + 3H2SO4 ⟶ Al2(SO4)3 + 3H2
(h) Fe + 2HCl ⟶ FeCl2 + H2
(i) Zn + 2NaOH ⟶ Na2ZnO2 + H2
(j) 2Al + 2KOH + 2H2O ⟶ 2KAlO2 + 3H2
Answered By
48 Likes
Related Questions
Give a reason for the following
(a) Though lead is above hydrogen in the activity series, it is not used to prepare hydrogen.
(b) Potassium and sodium are not used for reaction with dilute hydrochloric acid or dilute sulphuric acid in the laboratory preparation of hydrogen.
Name two alkalies that can displace hydrogen. Give balanced equations for the same. Why are the metals you have used considered to have unique nature?
If the following are kept in closed vessels at over 400°C what would happen to them ?
(a) iron filings and steam,
(b) hydrogen and magnetic oxide of iron ?
(a) A metal in the powdered form reacts very slowly with the boiling water, but it decomposes with steam. Name the metal.
(b) Write a balanced equation for the reaction of the named metal with (i) boiling water (ii) steam.