Question

How can I balance this equation? ____ Pb(OH)2 + ____ HCl ---> ____ H2O + ____ PbCl2

Answer 1

This reaction is a neutralization reaction.

In a neutralization reaction if you balance the water the rest of the equation will balance.

`Pb(OH)_2 + HCl -> H_2O + PbCl_2`

The hydroxide `(OH^-)` from the base will combine with the hydrogen `(H^+)` from the acid to form water. Since you have 2 hydroxides you will need 2 hydrogen to form 2 water.

`Pb(OH)_2 + 2HCl -> 2H_2O + PbCl_2`

Once the water balances the rest of the equation will be balanced.

I hope this was helpful.
SMARTERTEACHER