Find the volume of a box that's 5 inches by 5 inches by 10 inches

250 inches3
250 inches2

Based on the equation and the information in the table, what is the enthalpy of the reaction?

The boiling point of propanoic acid is higher than that of 1-butanol because: propanoic acid has a higher molecular weight than 1-butanol. propanoic acid is more soluble in water than 1-butanol. propanoic acid is a better hydrogen bond donor than 1-butanol. propanoic acid forms hydrogen bonded dimers and 1-butanol does not. 1-butanol forms hydrogen bonded dimers and propanoic acid does not.

Why does his teacher ask him to balance the equation by including the correct coefficient