Составьте ребус на термин «Химия»

А)  
2Na + 2H2O -> 2NaOH + H2
2NaOH + H2SO3 -> Na2SO3 + 2H2O
Na2SO3 + CaCl2 -> 2NaCl + CaSO3
2NaCl + CaSO4 -> Na2SO4 + CaCl2

б)
Mg + H2SO4 (разбавл. ) = MgSO4 + H2.
MgSO4 + 2NaOH = Mg(OH)2 (осадок) + Na2SO4.
Mg(OH)2 (нагрев) = MgO + H2O.
MgO + 2HCl = MgCl2 + H2O

в)
2Pb + O2 = 2PbO
PbO + 2HNO3 = Pb(NO3)2 + H2O
Pb(NO3)2 + Ba(OH)2 = Pb(OH)2 + Ba(NO3)2
Pb(OH)2 = PbO + H2O
PbO + SO3 = PbSO4

г)
Cu+2H2SO4 = CuO+SO4+H2O
CuO+ 2HCl = CuCl2+H2O
CuCl2+ 2NaOH = Cu(OH)2+ 2NaCl
Cu(OH)2*CuCO3 t= 2CuO+ H2O + CO2

2CH3-CH(OH)-CH2-CH3 +2 Na = 2CH3-CH(ONa)-CH2-CH3 + H2
CH3-CH(OH)-CH2-CH3 + HBr = CH3-CH(Br)-CH2-CH3 + H2O (над = H+)
CH3-CH(OH)-CH2-CH3 + H2SO4 = CH3-CH(O-HSO3)CH2-CH3 + H2O (над = H+)
CH3-CH(OH)-CH2-CH3 + CH3-COOH = CH3-C(O-CH(CH3)-CH2-CH3)=O + H2O (над = H+)
CH3-CH(OH)-CH2-CH3 = CH3-CH=CH-CH3  + H2O (над = H2SO4 и t>140)
2CH3-CH(OH)-CH2-CH3 = CH3-CH(O-CH(CH3)-CH2-CH3)-CH2-CH3 + H2O ( над = H2SO4 и t<140)
CH3-CH(OH)-CH2-CH3 + CuO =CH3-C(=O)-CH2-CH3 + Cu + H2O 
CH3-CH(OH)-CH2-CH3 + 6O2 = 4CO2 + 5H2O