Q69E - Chemistry (OpenStax)

Question

Question: Complete and balance each of the following chemical equations. (In some cases, there may be more than one correct answer.)

(a) \({{\rm{P}}_4} + {\rm{Al}}\) 

(b) \({{\rm{P}}_4} + {\rm{Na}}\)

(c) \({{\rm{P}}_4} + {{\rm{F}}_2}\) 

(d) \({{\rm{P}}_4} + {\rm{C}}{{\rm{l}}_2}\)

(e) \({{\rm{P}}_4} + {{\rm{O}}_2}\)

(f) \({{\rm{P}}_4}{{\rm{O}}_6} + {{\rm{O}}_2}\)

Step-by-Step Solution

Answer

The balanced chemical equations are:

\(\begin{array}{l}a){P_4}+4Al \to 4{\rm{AlP}}\\b){P_4}+12{\rm{Na}}\to 4{\rm{N}}{{\rm{a}}_3}{\rm{P}}\\c){P_4}+6{F_2}\to 4P{F_3}{P_4}+10{F_2}\to 4P{F_5}{P_4}+4{F_2} \to 2{P_2}{F_4}\\d){P_4}+6{\rm{C}}{{\rm{l}}_2} \to 4{\rm{PC}}{{\rm{l}}_3}{{\rm{P}}_4}+10{\rm{C}}{{\rm{l}}_2}\to4{\rm{PC}}{{\rm{l}}_5}\\e){P_4}+3{{\rm{O}}_2} \to {{\rm{P}}_4}{{\rm{O}}_6}\\f){P_4}{O_6}+2{O_2} \to {P_4}{O_1}_0\end{array}\)

 

Step 1: Definition of chemical equation.

A chemical equation is a symbolic representation of a chemical reaction in the form of symbols and formulae, with the reactant entities on the left and the product entities on the right, with a plus sign between the entities in both the reactants and the products, and an arrow pointing towards the products, indicating the reaction's direction.

Step 2: Write the chemical equations .

The chemical equations are

\(\begin{array}{l}a){P_4}+4Al\to4{\rm{AlP}}\\b){P_4}+12{\rm{Na}} \to 4{\rm{N}}{{\rm{a}}_3}{\rm{P}}\\c){P_4} + 6{F_2} \to 4P{F_3}{P_4}+10{F_2} \to 4P{F_5}{P_4}+4{F_2}\to 2{P_2}{F_4}\\d){P_4}+6{\rm{C}}{{\rm{l}}_2} \to 4{\rm{PC}}{{\rm{l}}_3}{{\rm{P}}_4}+10{\rm{C}}{{\rm{l}}_2} \to 4{\rm{PC}}{{\rm{l}}_5}\\e){P_4}+3{{\rm{O}}_2}\to{{\rm{P}}_4}{{\rm{O}}_6}\\f){P_4}{O_6}+2{O_2} \to {P_4}{O_1}0\end{array}\)