О
СН3 - СН - СН - С
| | Н
СН3 Br
<span>2-бром-3-метилбутаналь</span>
<span>a) Fe</span>⁺³₂<span>O</span>₃<span>+3C</span>⁰<span>=2Fe</span>⁰<span>+3C</span>⁺²<span>O
б) 2S</span>⁺⁴<span>O</span>₂<span>+O</span>₂⁰<span>=2S</span>⁺⁶<span>O</span>⁻²₃
2SO2 + O2 -> 2SO3
2Cu(NO3)2 -> 2CuO + 4NO2 + O2
Cu(OH)2 -> CuO + H2O
BaO + H2O -> Ba(OH)2
4NO2 + 2H2O + O2 -> 4HNO3