1. 2
2. 2
3. 4
4. 3
5. 4
6. 2
7. 4
8. 235
2K+2HNO3=2KNO3+H2
Na2CO3+Cu (NO3)2=CuCO3+2NaCO3
Ba+2H2O=Ba (OH)2+H2
2NaOH+H2SO4=Na2SO4+2H2O
2Cu+O2=2CuO
CuO+H2O=Cu(OH)2
3Cu(OH)2+Al2(SO4)3=3CuSO4+2Al(OH)3
CuSO4+Ca=CaSO4+Cu
1)
1. CH2=CH-CH3 + Cl2 свет = CH2=CH-CH2Cl + HCl
2. CH2=CH-CH2Cl + H2 = CH3-CH2-CH2Cl
3.CH3-CH2-CH2Cl + KOH(ВОД.) = CH3-CH2-CH2-OH + KCl
4.
t<140°C, H2SO4
2C3H7OH = C3H7-O-C3H7 + H2O