Правильный ответ под цифрой 3
1)CH3CH2CH2COONa+NaOH =>(t)=> A =>(Br2,hv)=> Б =>(Na)=> B
1) CH3CH2CH2COONa+NaOH=> CH3CH2CH3(пропан) + Na2CO3
2) CH3CH2CH3 + Br2 => CH3CHBrCH3(2-бромпропан) + HBr
3)2CH3CHBrCH3 + 2Na =>CH3-CH(CH3)-CH(CH3)-CH3 (2,3 - диметилбутан) + 2NaBr
б)Al4C3 =>(H2O)=> A = >(HNO3, t)=> Б
<span>Al4C3 +12 H2O =3 CH4(метан) + 4Al(OH)3</span>
<span>CH4 + HNO3 = CH3NO2 (нитрометан)+ H2O</span><span> </span>
KNO2<span> + </span>Br2 + H2O → 2HBr + KNO3
<span>CaCl2 + H2SO4 = CaSO4 + 2 HCl
</span>
2H(+) + SO4(2−) + Ca(2+) + 2Cl(−) = 2H(+) + 2Cl(− )+ CaSO4 <span>
</span><span>SO4(2−) + Ca(2+) =<span> CaSO4
</span></span>NaOH + HCl = H2O + NaCl
Na(+) + OH(-) + H(+) + Cl(-) = Na(+) + Cl(-) + H2O <span>
OH(-) +
H(+) = H2O</span>