GCSE Higher multiple choice Quiz on "Reversible Reactions, Chemical Equilibrium, Ammonia - it's Synthesis and Uses" at Doc Brown's Chemistry Clinic. ,revise,notes,ammonia,Haber,catalyst,iron,fertiliser,fertilizer,ammonium,salt,salts,chloride,sulphate,nitrate,nitrogen,carbon,monoxide,sulphuric,nitric,acid,neutralisation,neutralization,pollution,eutrophication KS4 revising revision btNH3mcHwpb) wpbchemhelp