Question #860e0

1 Answer
Jan 26, 2016

Answer:

The correct balanced equation is #"2HNO"_3 + "Ca(OH)"_2"##rarr##"Ca(NO"_3)_2" + 2H"_2"O"#

Explanation:

You are correct. The balanced equation is #"2HNO"_3 + "Ca(OH)"_2"##rarr##"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 #"Ca(OH)"_2"# and #"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.