Question

SPECIAL WORKSHEET
Complete and balance the following reactions :
1. Znso, + NaOH ---- Encol. Na, Soup
2. NH4Cl + NaOH -
3. Na + H2O -
4. Zn + KOH (hot & conc.) -
...
5. ZnCl2 + NH,OH -->
6. Fe (SOs) + NH.OH --
7. Na,Co, + CO2 + H2O --
8. Fe + Cl ---
9. Zn + H2SO4
10. FeSO, + H20 -
11. KNO3 + H2SO-
12. NaHCO3 + HCI-
13. ZnO + KOH
14. Pb(NO3)2 + HCI-
15. CuSO4 + HS
.
16. Pb(NO3)2 + H2SO4
→
17. Cu + H2SO.
18. Mg + HCI
19. Zn + S -
20. AgNO3 + HCI-

Answer 1

Answer:

ANSWER

Electronic configuration of Chromium, with atomic number 24=1s

2

2s

2

2p

6

3s

2

3p

6

4s

1

3d

5

.

Electronic configuration of Copper, with atomic number 29=1s

2

2s

2

2p

6

3s

2

3p

6

4s

1

3d

10

.