Msol=80·0.05=4g
mH2O=80-4=76g
1) <span>KClO₃→O₂→H₂O→H₂</span>
1) <span>2KClO₃ → 2KCl + 3O₂↑</span>
<span> 2) 2H₂+O₂=2H₂O</span>
<span> 3) 2H₂O=2H₂↑+O₂↑</span>
<span>2) <span>Al→Al₂S₃→Al₂O₃→Al </span></span>
<span><span> 1) 2Al+3S=Al₂S₃</span></span>
<span><span> 2) 3SiO₂+2Al₂S₃=3SiS₂+2Al₂O₃</span></span>
<span><span> 3) 2Al₂O₃=<span>4Al+3O₂</span></span></span>
Решение задачи находится на фото
O2 + 2C= 2CO
<span>CO + H2O = CO2 + H2 </span>
<span>CO2 + H2O = H2CO3
</span>H2CO3+<span>Ba(OH)2=BaCO3 (осадок) +2H20 </span>
<span>BaCO3 + H2S = BaS + CO2 + H2O </span>
<span>CO2 + Na2O = Na2CO3 </span>N2 + O2 = 2NO
NO + O3 = NO2 + O2
<span>H2 + 2NO2 = HNO2 + HNO3
</span><span>Fe + 4HNO3 = Fe(NO3)3 + NO + 2H2O
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