Write net equations for each of the reactions below. Use appropriate ionic and molecular formulas an — Net Ionic and Chemical Equations Chemistry Question
Problem Context
Write net equations for each of the reactions below. Use appropriate ionic and molecular formulas and omit formulas for all ions or molecules that do not take part in a reaction. Write structural formulas for all organic substances, and clearly show stereochemistry where relevant. You need not balance the equations or show the phases of the species.
Carbon dioxide is bubbled through a saturated solution of barium hydroxide.
Model Answer
(Note that while phases are shown here for the sake of completeness, they are not required on the exam.) Ba2+(aq) + OH–(aq) + CO2(g) ® BaCO3(s) + H2O(l)
Potassium permanganate is mixed with iron(II) sulfate in dilute sulfuric acid.
Model Answer
MnO4 –(aq) + Fe2+(aq) + H+(aq) ® Mn2+(aq) + Fe3+(aq) + H2O(l)
Solid silver chloride is added to concentrated aqueous ammonia.
Model Answer
AgCl(s) + NH3(aq) ® Ag(NH3)2 +(aq) + Cl–(aq)
Phosphorus trichloride reacts with potassium chlorate.
Model Answer
PCl3(l) + KClO3(s) ® POCl3(l) + KCl(s)
Para-xylene (1,4-dimethylbenzene) is heated with a mixture of concentrated nitric and sulfuric acids.
Fluorine-18 emits a positron.
Model Answer
18F ® 18O + b+