1.4E: Exercises for Section 1.4

Exercise \(\PageIndex{1}\)

Balance the following chemical reaction.

\(C_3 ​H_8​ + O_2​ → CO_2​ + H_2 ​O\)

Answer

\(C_3 ​H_8​ + 5O_2​ → 3CO_2​ + 4H_2 ​O\)

Exercise \(\PageIndex{2}\)

Balance the following chemical reaction.

\(KNO_{3}+H_{2}CO_{3}\rightarrow K_{2}CO_{3}+HNO_{3}\)

Exercise \(\PageIndex{3}\)

Balance the following chemical reaction.

\(C_2 ​H_5 ​OH + O_2​ → CO_2 ​+ H_2 ​O\)

Answer

\(C_2 ​H_5 ​OH + 3O_2​ → 2CO_2 ​+ 3H_2 ​O\)

Exercise \(\PageIndex{4}\)

Balance the following chemical reaction.

\(AgI+Na_{2}S\rightarrow Ag_{2}S+NaI\)

Exercise \(\PageIndex{5}\)

Balance the following chemical reaction.

\(P_4​O_{10}​ + H_2 ​O → H_3 ​PO_4\)​

Answer

\(P_4​O_{10}​ + 6H_2 ​O → 4H_3 ​PO_4\)

Exercise \(\PageIndex{6}\)

Balance the following chemical reaction.

\(Ba_{3}N_{2}+H_{2}O\rightarrow Ba\left( OH\right) _{2}+NH_{3}\)

Exercise \(\PageIndex{7}\)

Balance the following chemical reaction.

\(Na_2 CO_3 ​+ H_2 ​SO_4​ → Na_2 ​SO_4 ​+ CO_2​ + H_2 ​O\)

Answer

\(Na_2 CO_3 ​+ H_2 ​SO_4​ → Na_2 ​SO_4 ​+ CO_2​ + H_2 ​O\)

Exercise \(\PageIndex{8}\)

Balance the following chemical reaction.

\(CaCl_{2}+Na_{3}PO_{4}\rightarrow Ca_{3}\left( PO_{4}\right) _{2}+NaCl\)