1)<span>Ca-CaO-Ca(OH)2-Ca(NO3)2-CaSO4</span>
<span>2Сa+O2=2CaO </span>
<span>CaO+H2O=Ca(OH)2 </span>
<span>Ca(OH)2+2HNO3=Ca(NO3)2+2H2O </span>
<span>Ca(NO3)2+H2SO4=CaSO4+2HNO3 </span>
<span>Ca(2+)+SO4(2-)=CaSO4</span>
<span>2)<span>Al2O3-Al2(SO4)3-Al(OH)3-Al2O3</span></span>
Al2O3+3H2SO4=Al2(SO4)3+3H2O
Al2(SO4)3+6NH4OH=2Al(OH)3+3(NH4)2SO4
2Al(OH)3=Al2O3+3H2O
3)<span>CaCO3-CaO-Ca(OH)2-CaCO3-Ca(NO3)2</span>
<span>CaCO3=CaO+CO2 </span>
<span>CaO+H2O=Ca(OH)2</span>
<span><span>Ca(OH)2+CO2=CaCO3+H2O </span>
</span>CaCO3+CO2+H2O=Ca(HCO3)2
4)<span>Cu-CuO-CuCL2-CuO-Cu-CuSO4-Cu(OH)2</span>
<span>2Cu+O2=2CuO </span>
<span>CuO+2HCl(разб.)=CuCl2+H2O</span>
(СuCl2-CuO)=?
2Cu+O2=2CuO
CuO+H2SO4=CuSO4+H2O
CuSO4+2NaOH=Cu(OH)2+Na2SO4
CH3-CH2-CH2Cl +KOH=CH3-CH2-CH2OH+KCl
5CH3-CH2-CH2OH+4KMnO4+6H2SO4(t) =5CH3-CH2-COOH+4MnSO4+2K2SO4+11H2O
CH3-CH2-COOH+Cl2=CH3-CHCl-COOH+HCl
CH3-CHCl-COOH+NH3=CH3-CH(NH2)-COOH+HCl
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DH=▬92кДж
(это минус)
энтальпия противоположена по знаку выделившейся энергии
