[12%] Write net equations for each of the reactions below. Use appropriate ionic and molecular formu — Descriptive Chemistry / Chemical Reactions Chemistry Question
Problem Context
[12%] 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 phase of the species.
Aqueous ammonia and acetic acid are mixed.
Model Answer
NH3 + CH3COOH → NH4+ + CH3COO-
Sodium iodate is added to an excess of hydriodic acid.
Model Answer
IO3- + H+ + I- → I3- + H2O (I2 also acceptable in place of I3-)
Manganese(IV) oxide is added to concentrated aqueous hydrochloric acid.
Model Answer
MnO2 + H+ + Cl- → Mn2+ + H2O + Cl2
Propyl benzoate is heated with aqueous sodium hydroxide.
Calcium oxide and graphite are heated to 2200 °C.
Model Answer
CaO + C → CaC2 + CO
Iodine-124 undergoes radioactive decay by electron capture.
Model Answer
124I → 124Te