Final answer:
Chlorine can react with sodium bromide, sodium iodide, potassium bromide, and potassium iodide to produce the respective chlorides and release diatomic bromine or iodine. The balanced chemical equations reflect the single replacement reactions where chlorine displaces the less reactive halogens.
The correct answer is B.
Step-by-step explanation:
A single replacement reaction occurs when an element reacts with a compound and replaces one of the elements in that compound. When chlorine (Cl₂) reacts in a single replacement reaction with sodium bromide (NaBr), sodium iodide (NaI), potassium bromide (KBr), and potassium iodide (KI), the chlorine atoms displace the bromide and iodide ions because chlorine is more reactive. Here are the balanced chemical equations for each reaction:
- 2 NaBr + Cl₂ → 2 NaCl + Br₂
- 2 NaI + Cl₂ → 2 NaCl + I₂
- 2 KBr + Cl₂ → 2 KCl + Br₂
- 2 KI + Cl₂ → 2 KCl + I₂
It is crucial to note that during the balancing process, the diatomic nature of Cl₂, Br₂, and I₂ is taken into account. These molecular forms are among the seven diatomic molecules known to exist in nature.