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 !
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Ответы на вопрос:
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[-] прошу вас.
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