Question

Select the properly written and balanced equation for the following chemical reaction: Aqueous solutions of sodium hydroxide and iron (III) nitrate react to produce a precipitate of iron (III) hydroxide in an aqueous solution of sodium nitrate.


3NaOH (aq) + Fe(NO3)3 (aq) arrow Fe(OH)3 (s) + 3NaNO3 (aq)

NaOH (aq) + FeNO3 (aq) arrow FeOH (s) + NaNO3 (aq)

NaOH (aq) + Fe(NO3)3 (aq) arrow FeOH3 (s) + NaNO3 (aq)

3NaOH (aq) + FeNO3 (aq) arrow FeOH (s) + 3NaNO3 (aq)

Answer 1

You should count the amount of all the different types of atom's in front of the arrow and they should be the same behind the arrow, so which one would you pick?