Balancing of Redox Reactions
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CHXI08:REDOX REACTIONS

315078 Consider the balanced chemical reaction:
\(\mathrm{aI}_{2} \mathrm{O}_{5}+\mathrm{bBrF}_{3} \rightarrow \mathrm{cIF}_{5}+\mathrm{dO}_{2}+\mathrm{eBr}_{2}\)
Calculate the value of \((b+c+e) /(a)\).

1 10
2 7
3 6
4 3
CHXI08:REDOX REACTIONS

315079 The coefficients of \(\mathrm{\mathrm{NO}_{3}^{-}, \mathrm{IO}_{3}^{-}}\)and \(\mathrm{\mathrm{H}_{2} \mathrm{O}}\) in the balanced equation are
\(\mathrm{\mathrm{I}_{2}+\mathrm{NO}_{3}^{-} \rightarrow \mathrm{NO}_{2}+\mathrm{IO}_{3}^{-}+\mathrm{H}_{2} \mathrm{O}}\) (acidic medium)

1 \(\mathrm{2,4,10}\)
2 \(\mathrm{2,2,10}\)
3 \(\mathrm{10,4,2}\)
4 \(\mathrm{10,2,4}\)
CHXI08:REDOX REACTIONS

315080 \(\mathrm{\mathrm{Ca}_{3}\left(\mathrm{PO}_{4}\right)_{2}+\mathrm{SiO}_{2}+\mathrm{C} \rightarrow \mathrm{CaSiO}_{3}+\mathrm{P}_{4}+\mathrm{CO}}\) (unbalanced)
The balanced equation will have the stoichiometry for the reactants:
\({\rm{C}}{{\rm{a}}_{\rm{3}}}{\left( {{\rm{P}}{{\rm{O}}_{\rm{4}}}} \right)_{\rm{2}}}\,\,\,\,\,\,\,\,\,\,{\rm{Si}}{{\rm{O}}_{\rm{2}}}\,\,\,\,\,\,\,\,\,\,{\rm{C}}\)

1 \(\,\,\,\,\,\,\,\,\,\,\,{\rm{1}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{\rm{3}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{\rm{5}}\)
2 \(\,\,\,\,\,\,\,\,\,\,{\rm{2}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{\rm{3}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{\rm{5}}\)
3 \(\,\,\,\,\,\,\,\,\,\,{\rm{2}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{\rm{6}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,{\rm{10}}\)
4 \(\,\,\,\,\,\,\,\,\,\,{\rm{1}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{\rm{6}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,{\rm{10}}\)
CHXI08:REDOX REACTIONS

315081 What will be the value of \(\mathrm{x, y}\) and \(\mathrm{z}\) in the following equation?
\(\rm{x \mathrm{I}_{2}+y \mathrm{OH}^{-} \rightarrow \mathrm{IO}_{3}^{-}+z \mathrm{I}^{-}+3 \mathrm{H}_{2} \mathrm{O}}\)

1 \(\mathrm{3,5,6}\)
2 \(\mathrm{5,6,3}\)
3 \(\mathrm{3,6,5}\)
4 \(\mathrm{6,3,5}\)
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CHXI08:REDOX REACTIONS

315078 Consider the balanced chemical reaction:
\(\mathrm{aI}_{2} \mathrm{O}_{5}+\mathrm{bBrF}_{3} \rightarrow \mathrm{cIF}_{5}+\mathrm{dO}_{2}+\mathrm{eBr}_{2}\)
Calculate the value of \((b+c+e) /(a)\).

1 10
2 7
3 6
4 3
CHXI08:REDOX REACTIONS

315079 The coefficients of \(\mathrm{\mathrm{NO}_{3}^{-}, \mathrm{IO}_{3}^{-}}\)and \(\mathrm{\mathrm{H}_{2} \mathrm{O}}\) in the balanced equation are
\(\mathrm{\mathrm{I}_{2}+\mathrm{NO}_{3}^{-} \rightarrow \mathrm{NO}_{2}+\mathrm{IO}_{3}^{-}+\mathrm{H}_{2} \mathrm{O}}\) (acidic medium)

1 \(\mathrm{2,4,10}\)
2 \(\mathrm{2,2,10}\)
3 \(\mathrm{10,4,2}\)
4 \(\mathrm{10,2,4}\)
CHXI08:REDOX REACTIONS

315080 \(\mathrm{\mathrm{Ca}_{3}\left(\mathrm{PO}_{4}\right)_{2}+\mathrm{SiO}_{2}+\mathrm{C} \rightarrow \mathrm{CaSiO}_{3}+\mathrm{P}_{4}+\mathrm{CO}}\) (unbalanced)
The balanced equation will have the stoichiometry for the reactants:
\({\rm{C}}{{\rm{a}}_{\rm{3}}}{\left( {{\rm{P}}{{\rm{O}}_{\rm{4}}}} \right)_{\rm{2}}}\,\,\,\,\,\,\,\,\,\,{\rm{Si}}{{\rm{O}}_{\rm{2}}}\,\,\,\,\,\,\,\,\,\,{\rm{C}}\)

1 \(\,\,\,\,\,\,\,\,\,\,\,{\rm{1}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{\rm{3}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{\rm{5}}\)
2 \(\,\,\,\,\,\,\,\,\,\,{\rm{2}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{\rm{3}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{\rm{5}}\)
3 \(\,\,\,\,\,\,\,\,\,\,{\rm{2}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{\rm{6}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,{\rm{10}}\)
4 \(\,\,\,\,\,\,\,\,\,\,{\rm{1}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{\rm{6}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,{\rm{10}}\)
CHXI08:REDOX REACTIONS

315081 What will be the value of \(\mathrm{x, y}\) and \(\mathrm{z}\) in the following equation?
\(\rm{x \mathrm{I}_{2}+y \mathrm{OH}^{-} \rightarrow \mathrm{IO}_{3}^{-}+z \mathrm{I}^{-}+3 \mathrm{H}_{2} \mathrm{O}}\)

1 \(\mathrm{3,5,6}\)
2 \(\mathrm{5,6,3}\)
3 \(\mathrm{3,6,5}\)
4 \(\mathrm{6,3,5}\)
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CHXI08:REDOX REACTIONS

315078 Consider the balanced chemical reaction:
\(\mathrm{aI}_{2} \mathrm{O}_{5}+\mathrm{bBrF}_{3} \rightarrow \mathrm{cIF}_{5}+\mathrm{dO}_{2}+\mathrm{eBr}_{2}\)
Calculate the value of \((b+c+e) /(a)\).

1 10
2 7
3 6
4 3
CHXI08:REDOX REACTIONS

315079 The coefficients of \(\mathrm{\mathrm{NO}_{3}^{-}, \mathrm{IO}_{3}^{-}}\)and \(\mathrm{\mathrm{H}_{2} \mathrm{O}}\) in the balanced equation are
\(\mathrm{\mathrm{I}_{2}+\mathrm{NO}_{3}^{-} \rightarrow \mathrm{NO}_{2}+\mathrm{IO}_{3}^{-}+\mathrm{H}_{2} \mathrm{O}}\) (acidic medium)

1 \(\mathrm{2,4,10}\)
2 \(\mathrm{2,2,10}\)
3 \(\mathrm{10,4,2}\)
4 \(\mathrm{10,2,4}\)
CHXI08:REDOX REACTIONS

315080 \(\mathrm{\mathrm{Ca}_{3}\left(\mathrm{PO}_{4}\right)_{2}+\mathrm{SiO}_{2}+\mathrm{C} \rightarrow \mathrm{CaSiO}_{3}+\mathrm{P}_{4}+\mathrm{CO}}\) (unbalanced)
The balanced equation will have the stoichiometry for the reactants:
\({\rm{C}}{{\rm{a}}_{\rm{3}}}{\left( {{\rm{P}}{{\rm{O}}_{\rm{4}}}} \right)_{\rm{2}}}\,\,\,\,\,\,\,\,\,\,{\rm{Si}}{{\rm{O}}_{\rm{2}}}\,\,\,\,\,\,\,\,\,\,{\rm{C}}\)

1 \(\,\,\,\,\,\,\,\,\,\,\,{\rm{1}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{\rm{3}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{\rm{5}}\)
2 \(\,\,\,\,\,\,\,\,\,\,{\rm{2}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{\rm{3}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{\rm{5}}\)
3 \(\,\,\,\,\,\,\,\,\,\,{\rm{2}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{\rm{6}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,{\rm{10}}\)
4 \(\,\,\,\,\,\,\,\,\,\,{\rm{1}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{\rm{6}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,{\rm{10}}\)
CHXI08:REDOX REACTIONS

315081 What will be the value of \(\mathrm{x, y}\) and \(\mathrm{z}\) in the following equation?
\(\rm{x \mathrm{I}_{2}+y \mathrm{OH}^{-} \rightarrow \mathrm{IO}_{3}^{-}+z \mathrm{I}^{-}+3 \mathrm{H}_{2} \mathrm{O}}\)

1 \(\mathrm{3,5,6}\)
2 \(\mathrm{5,6,3}\)
3 \(\mathrm{3,6,5}\)
4 \(\mathrm{6,3,5}\)
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CHXI08:REDOX REACTIONS

315078 Consider the balanced chemical reaction:
\(\mathrm{aI}_{2} \mathrm{O}_{5}+\mathrm{bBrF}_{3} \rightarrow \mathrm{cIF}_{5}+\mathrm{dO}_{2}+\mathrm{eBr}_{2}\)
Calculate the value of \((b+c+e) /(a)\).

1 10
2 7
3 6
4 3
CHXI08:REDOX REACTIONS

315079 The coefficients of \(\mathrm{\mathrm{NO}_{3}^{-}, \mathrm{IO}_{3}^{-}}\)and \(\mathrm{\mathrm{H}_{2} \mathrm{O}}\) in the balanced equation are
\(\mathrm{\mathrm{I}_{2}+\mathrm{NO}_{3}^{-} \rightarrow \mathrm{NO}_{2}+\mathrm{IO}_{3}^{-}+\mathrm{H}_{2} \mathrm{O}}\) (acidic medium)

1 \(\mathrm{2,4,10}\)
2 \(\mathrm{2,2,10}\)
3 \(\mathrm{10,4,2}\)
4 \(\mathrm{10,2,4}\)
CHXI08:REDOX REACTIONS

315080 \(\mathrm{\mathrm{Ca}_{3}\left(\mathrm{PO}_{4}\right)_{2}+\mathrm{SiO}_{2}+\mathrm{C} \rightarrow \mathrm{CaSiO}_{3}+\mathrm{P}_{4}+\mathrm{CO}}\) (unbalanced)
The balanced equation will have the stoichiometry for the reactants:
\({\rm{C}}{{\rm{a}}_{\rm{3}}}{\left( {{\rm{P}}{{\rm{O}}_{\rm{4}}}} \right)_{\rm{2}}}\,\,\,\,\,\,\,\,\,\,{\rm{Si}}{{\rm{O}}_{\rm{2}}}\,\,\,\,\,\,\,\,\,\,{\rm{C}}\)

1 \(\,\,\,\,\,\,\,\,\,\,\,{\rm{1}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{\rm{3}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{\rm{5}}\)
2 \(\,\,\,\,\,\,\,\,\,\,{\rm{2}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{\rm{3}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{\rm{5}}\)
3 \(\,\,\,\,\,\,\,\,\,\,{\rm{2}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{\rm{6}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,{\rm{10}}\)
4 \(\,\,\,\,\,\,\,\,\,\,{\rm{1}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{\rm{6}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,{\rm{10}}\)
CHXI08:REDOX REACTIONS

315081 What will be the value of \(\mathrm{x, y}\) and \(\mathrm{z}\) in the following equation?
\(\rm{x \mathrm{I}_{2}+y \mathrm{OH}^{-} \rightarrow \mathrm{IO}_{3}^{-}+z \mathrm{I}^{-}+3 \mathrm{H}_{2} \mathrm{O}}\)

1 \(\mathrm{3,5,6}\)
2 \(\mathrm{5,6,3}\)
3 \(\mathrm{3,6,5}\)
4 \(\mathrm{6,3,5}\)
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