Напишите степени окисления каждого элемента. zn+h2so4=h2s+znso4+h2o. ph3+cl2=pcl3+hcl. ch4+cl=ccl4+hcl. ki+h2o2=kio3+h2o. kl+agno3=agi+kno3. nh4ci=nh3+hci. ki+nh4oh=nh4i+koh. заранее большое !

1) Zn[0] + 2H[+]S[+6]O4[-2] -> 2H[+]S[2-] + Zn[+2]S[+6]O4[-2] + 2H[+]O[-2]
2) K[+]I[-] + 2H[+]2O[-] -> K[+]I[+5]O3[-2] + 2H[+]O[-2]
3) K[+]I[-] + N[-3]4H[+]O[-2]H[+] -> N[-3]3H[+]I[-] + K[+]O[-2]H[+] 
4) P[-3]3H[+] + Cl2[0] -> P[+3]3Cl[-] + H[+]Cl[-]
5) C[-4]4H[+] + Cl2[0] -> C[+4]4Cl[-] + H[+]Cl[-]
6) K[+]I[-] + Ag[+]N[+5]3O[-2] -> Ag[+]I[-] + K[+]N[+5]3O[-2]
7) N[-3]4H[+]Cl[-] -> N[-3]3H[+] + H[+]Cl[-]
вас.