which are examples of reversible reactions? check all that apply.\niodine and chlorine can react to form…

which are examples of reversible reactions? check all that apply.\niodine and chlorine can react to form iodine chloride. at equilibrium, the system contains a mixture of iodine, chlorine, and iodine chloride.\nsodium hydroxide and hydrochloric acid react readily to form sodium chloride and water. the reverse reaction does not occur.\nhydrogen and nitrogen react to form ammonia. at low pressure, the equilibrium system contains all three substances.\ndone
Answer
Brief Explanations:
A reversible reaction is one where the reactants and products exist in equilibrium, meaning both forward and reverse reactions occur, and at equilibrium, reactants and products are present.
- For the first option: Iodine and chlorine form iodine chloride, and at equilibrium, all three (iodine, chlorine, iodine chloride) are present. This shows both forward (formation of iodine chloride) and reverse (decomposition of iodine chloride back to iodine and chlorine) reactions occur, so it's reversible.
- For the second option: Sodium hydroxide and hydrochloric acid react to form sodium chloride and water, and the reverse reaction does not occur. So this is an irreversible reaction (a neutralization reaction that goes to completion, no equilibrium of reactants and products).
- For the third option: Hydrogen and nitrogen form ammonia, and at equilibrium (even at low pressure here), all three (hydrogen, nitrogen, ammonia) are present. This means the forward (formation of ammonia) and reverse (decomposition of ammonia back to hydrogen and nitrogen) reactions are occurring, so it's a reversible reaction.
Answer:
- Iodine and chlorine can react to form iodine chloride. At equilibrium, the system contains a mixture of iodine, chlorine, and iodine chloride.
- Hydrogen and nitrogen react to form ammonia. At low pressure, the equilibrium system contains all three substances.