Write net equations for each of these reactions. Use appropriate ionic and molecular formulas for th — Descriptive Chemistry Chemistry Question
Problem Context
Write net equations for each of these reactions. Use appropriate ionic and molecular formulas for the reactants and products 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 reactions. All reactions occur in aqueous solution unless otherwise indicated.
Phosphorus is burned in excess oxygen.
Model Answer
P4 + O2 → P4O10
Sulfur dioxide is bubbled into water.
Model Answer
SO2 + H2O → H2SO3 or H+ + HSO3 –
Chlorine gas is bubbled through a sodium bromide solution.
Model Answer
Cl2 + Br– → Cl– + Br2
Solutions of magnesium nitrate and potassium hydroxide are mixed.
Model Answer
Mg2+ + OH– → Mg(OH)2
A sodium thiosulfate solution is added to a suspension of silver chloride.
Model Answer
AgCl + S2O3 2– → Ag(S2O3)2 3– + Cl–
Bromine is added to a solution of ethylene in hexane.
Model Answer
+ Br2 →
Radium-226 emits an alpha particle.
Model Answer
226 88 Ra → 4 2 He + 222 86 Rn