1)2Zn+O2->2ZnO
<span>2)2MnO2+O2+4KOH->2K2MnO4+2H2O </span>
<span>3)6MnO2+2KClO3+12KOH->6K2MnO4+2KCl+6H2O </span>
<span>4)2Cu(NO3)2->2CuO+4NO2+O2 </span>
<span>5)6P+3KHO+6H2O->3KH2PO3+3PH3</span>
.........................
1) n (Cl2) = m/M = 25 / 71 = 0.352 моль
V (Cl2) = n * Vm = 0.352 * 22.4 = 7.8848л
Ответ: V (Cl2) = 7.8848л
2) n (CO2) = V/Vm = 40 / 22.4 = 1.786 моль
m (CO2) = n * M = 1.786 * 44 = 78.584г
Ответ: m (CO2) = 78.584г
3) n (NO2) = m/M = 100 / 46 = 2.174 моль
V (NO2) = n * Vm = 2.174 * 22.4 = 48.6976л
Ответ: V (NO2) = 48.6976л
4) n (CH4) = V/Vm = 15 / 22.4 = 0.6696 моль
m (CH4) = n * M = 0.6696 * 16 = 10.7136г
Ответ: m (CH4) = 10.7136г
А может NaOH? попробую решить) подробно описать!