Question

Aqueous solutions of sodium hydroxide and magnesium chloride are mixed, resulting in the precipitate formation of magnesium hydroxide with aqueous sodium chloride as the other product. Write the balance chemical equation for this reaction

Answer 1

Answer:
`2NaOH(aq)+MgCl_2(aq)\rightarrow NaCl(aq)+Mg(OH)_2(s)`

Step-by-step explanation:

According to the law of conservation of mass, mass can neither be created nor be destroyed. Thus the mass of products has to be equal to the mass of reactants. The number of atoms of each element has to be same on reactant and product side. Thus chemical equations are balanced.

A double displacement reaction is one in which exchange of ions take place. The salts which are soluble in water are designated by symbol (aq) and those which are insoluble in water and remain in solid form are represented by (s) after their chemical formulas.

`2NaOH(aq)+MgCl_2(aq)\rightarrow NaCl(aq)+Mg(OH)_2(s)`