All the equations about sodium in chemistry are compulsory for senior one.

As follows:

( 1)4Na+O2=2Na2O

(2)2Na+O2=Na2O2

(3)2Na+2H2O=2NaOH+H2↑

(4)2Na+Cl2=2NaCl，4Na+TiCl4 = Ti+4NaCl

(5)2Na2O2+2CO2=2Na2CO3+O2

(6)2Na2O2+2H2O=4NaOH+O2↑

Na2O+CO2=Na2CO3

(8)Na2O+H2O=2NaOH

(9) Proper amount of 2 NaOH+CO2 = Na2CO3+H2O

(10) Excess sodium hydroxide+carbon dioxide = sodium bicarbonate

(1 1) Sodium hydroxide+hydrochloric acid = sodium chloride +H2O

( 12)2NaCl+2H2O = 2 NaOH+H2 ↑+ Cl2↑

(13) sodium carbonate+carbon dioxide +H2O= sodium bicarbonate

(14)2 sodium bicarbonate = sodium carbonate+carbon dioxide =+H2O

(15) Na2CO3+2hcl = 2ncl+H2O+CO2 = (the reaction is slower than NaHCO3).

(16) sodium bicarbonate+hydrochloric acid = sodium chloride +H2O+ carbon dioxide = (the reaction is faster than sodium carbonate)

( 17)2Na+cuso 4+2H2O = Cu(OH)2↓+na2so 4+H2↑

( 18)NaH+H2O=NaOH+H2↑

( 19)2Na+S = Na2S