Write net equations for each of the reactions below. Use appropriate ionic and molecular formulas an — Descriptive Chemistry / Net Ionic 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. You need not balance the equations.
Solid calcium oxide is added to distilled water.
Model Answer
CaO(s) + H2O(l) → Ca(OH)2(s) (Ca2+(aq) + OH–(aq) would also be accepted)
Acidic aqueous solutions of potassium permanganate and iron(II) sulfate are mixed.
Model Answer
MnO4 –(aq) + Fe2+(aq) + H+(aq) → Mn2+(aq) + Fe3+(aq) + H2O(l)
Gaseous ammonia and boron trifluoride are mixed.
Model Answer
NH3(g) + BF3(g) → H3NBF3(s)
Solid phosphorus(V) oxide is added to an excess of aqueous sodium carbonate.
Model Answer
P4O10(s) + CO3 2–(aq) + H2O(l) → HPO4 2–(aq) + HCO3 –(aq)
Potassium hydroxide is added to a dimethyl sulfoxide solution of 1-bromobutane.
Fluorine-18 emits a positron.
Model Answer
18F → 18O + e+1 0