1. zn+s→ zns
2. k+ o2→ko2
3. mg+ h2o→ mg(oh)2 + h2
4. 2al+ 3h2so4→ al2(so4)3 + 3h2
5. fe2o3+2cu→ 2fe + cu2o3
6. ba+2naoh→ ba(oh)2 + 2na
7. 2au+ 3h2so4→ au2(so4)3 + 3h2
8. zno+2na→ na2o + zn
9. ag+ h2o
10. 2na+ cuso4→ na2so4 + cu
1. zn+s→ zns
2. k+ o2→ko2
3. mg+ h2o→ mg(oh)2 + h2
4. 2al+ 3h2so4→ al2(so4)3 + 3h2
5. fe2o3+2cu→ 2fe + cu2o3
6. ba+2naoh→ ba(oh)2 + 2na
7. 2au+ 3h2so4→ au2(so4)3 + 3h2
8. zno+2na→ na2o + zn
9. ag+ h2o
10. 2na+ cuso4→ na2so4 + cu