select the correct answer. which displacement reaction is most likely to occur? use the resources to help…

select the correct answer. which displacement reaction is most likely to occur? use the resources to help you. a. bacl₂ + ca → cacl₂ + ba b. bacl₂ + sr → srcl₂ + ba c. bacl₂ + 2na → 2nacl + ba d. bacl₂ + mg → mgcl₂ + ba

select the correct answer. which displacement reaction is most likely to occur? use the resources to help you. a. bacl₂ + ca → cacl₂ + ba b. bacl₂ + sr → srcl₂ + ba c. bacl₂ + 2na → 2nacl + ba d. bacl₂ + mg → mgcl₂ + ba

Answer

Answer:

A. BaCl₂ + Ca → CaCl₂ + Ba

Explanation:

Step1: Recall activity series

In a single - displacement reaction, a more reactive metal can displace a less reactive metal from its compound. The activity series of metals (from most reactive to least reactive) includes Ca > Sr > Na > Mg > Ba.

Step2: Analyze each option

  • Option A: Ca is more reactive than Ba. So, Ca can displace Ba from BaCl₂.
  • Option B: Sr is less reactive than Ba in the activity series, so Sr cannot displace Ba from BaCl₂.
  • Option C: Na is less reactive than Ba in the context of displacing Ba from its chloride, so this reaction is not likely.
  • Option D: Mg is less reactive than Ba, so Mg cannot displace Ba from BaCl₂.