Chemistry: Balance the following equations

Balance the following equations

(a)C2H4(OH)2(s) + O2(g) ----> CO2(g) + H2O(l)

(b) Li(s) + H2O(l) ----> LiOH(aq) + H2(g)

(c) Ba(OH)2(aq) + AlCl3(aq) ----> BaCl2(aq) + Al(OH)3(s)

(d) KHC8H4O4(aq) + KOH(aq) ----> K2C8H4O4(aq) + H2O(l)

(e) (NH4)2Cr2O7(s) ----> N2(g)+ Cr2O3(s) + H2O(g)

Answer

Ans. Coefficients are
(a) 2, 5, 4, 6; 
(b) 2, 2, 2, 1;
(c) 3, 2, 3, 2; 
(d) 1, 1, 1, 1; 
(e) 1, 1, 1, 4