What is the chemical reaction that occurs when a century egg is made using NaOH and NaCl ?
Why does the chemical reaction -LSB- math -RSB- \ require -LCB- mhchem -RCB- \ ce -LCB- H2O + NaCl - > H + + Cl - + OH - + Na + -RCB- -LSB- / math -RSB- happen instead of -LSB- math -RSB- \ ce -LCB- H2O + NaCl - > HCl + NaOH -RCB- -LSB- / math -RSB- in every day life ?