Write the balanced chemical equation for the following chemical reactions: Neutralization of sodium hydroxide and chromic acid.
You need to remember that you need an acid to neutralize the sodium hydroxide, which is a base, hence, you should select an acid for this reaction.
Selecting chromic acid, you may write the balanced equation such that:
`Na OH + H_2CrO_4 -gt Na_2 CrO_4 + H_2 O`
You need to balance the number of Na elements, hence, you should multiply Na by 2, to the left side such that:
`2Na OH + H_2CrO_4 -gt Na_2 CrO_4 + H_2 O`
Since the number of hydrogen elements that enter is 4 and yields 2, you need to multiply by 2 hydrogen to the right such that:
`2Na OH + H_2CrO_4 -gt Na_2 CrO_4 + 2H_2 O`
Hence, evaluating the balanced equation of NaOH and `H_2CrO_4` yields `2Na OH + H_2CrO_4 -gt Na_2 CrO_4 + 2H_2 O.`