# Question #860e0

Jan 26, 2016

The correct balanced equation is $\text{2HNO"_3 + "Ca(OH)"_2}$$\rightarrow$$\text{Ca(NO"_3)_2" + 2H"_2"O}$

#### Explanation:

You are correct. The balanced equation is $\text{2HNO"_3 + "Ca(OH)"_2}$$\rightarrow$$\text{Ca(NO"_3)_2" + 2H"_2"O}$.

Both sides of the equation have 4 H atoms, 2 N atoms, 8 O atoms, and 1 Ca atom. You can replace the term atoms with moles.

The equation does have four coefficients. The coefficient for $\text{Ca(OH)"_2}$ and $\text{Ca(NO"_3)_2}$ is 1. It is not written but is understood.

It is not unusual for there to be mistakes in a textbook. New math textbooks are sometimes accompanied by an errata sheet. You should let your instructor know about this error.