Question

Complete and balance the following reaction : - (5)

1. K + H2O  ..................+ ..................

2. Ca + H2O  ..................+ ..................

3. Zn + HCl  ..................+ ..................

4. Zn + NaOH  ..................+ ..................

5. Fe + H2O  ..................+ ..................​

Answer 1

Answer:

1. 2K(s) + 2H2O (l) ——> 2KOH (aq) + H2 (g)

2. Ca(s) + 2H2O (l) ——> Ca(OH)2 (aq) + H2(g)

3. Zn(s) +2HCl (aq) ——> ZnCl2 (aq) + H2 (g)

4. Zn (s) + 2NaOH(aq) ——> Na2ZnO2 (aq) + H2(g)

5. 3Fe(s) + 4H2O (l) ——> Fe3O4(s) + 4H2(g)

the reaction is balanced now....

hope it helps you..