Na2O+H2O=2NaOH
Na2O+CO2=Na2CO3
Na2O+2HCl(разб)=2NaCl+H2O
20g xg
Ca(OH)2+2HCl=CaCl2+2H2O
74g 113g
x=20·113÷74=30.5g
KCl c H2O
NaOH c P2O5
KCl c NaOH
2HCOOH + Ba(OH)2 -> (HCOO)2Ba + 2H2O
2CH3-CH2-COOH + 2Na -> 2CH3-CH2-COONa + H2
CH3-CH(CH3)-CH2-CH2OH->CH3-CH(CH3)-CH=CH2+H2O 3-метилбутен
<span>2CH3-CH(CH3)-CH2-CH2OH->CH3-CH(CH3)-CH2-CH2-O-CH2-CH2-CH(CH3)-CH3+H2O диизопентиловый эфир</span>