7 • • • → • • • \nsingle replacementdisplac\n8 • • → • • \n9 caco₃ → cao + co₂ \n10 nacl + agno₃ → nano₃ +…

7 • • • → • • • \nsingle replacementdisplac\n8 • • → • • \n9 caco₃ → cao + co₂ \n10 nacl + agno₃ → nano₃ + agcl \n11 zn + 2hcl → zncl₂ + h₂ \n12 na(s) + cl₂(g) → 2nacl(s) \n13 hcl + naoh → nacl + h₂o \n14 2h₂o → 2h₂ + o₂ \n15 zn(s) + cuso₄(aq) → znso₄(aq) + cu(s)

7 • • • → • • • \nsingle replacementdisplac\n8 • • → • • \n9 caco₃ → cao + co₂ \n10 nacl + agno₃ → nano₃ + agcl \n11 zn + 2hcl → zncl₂ + h₂ \n12 na(s) + cl₂(g) → 2nacl(s) \n13 hcl + naoh → nacl + h₂o \n14 2h₂o → 2h₂ + o₂ \n15 zn(s) + cuso₄(aq) → znso₄(aq) + cu(s)

Answer

Explanation:

Step1: Identify reaction types

  • For 8: It is a synthesis reaction as two substances combine to form one product.
  • For 9: It is a decomposition reaction as one compound breaks into two simpler substances.
  • For 10: It is a double - replacement reaction as the cations and anions of two different compounds exchange places.
  • For 11: It is a single - replacement reaction as zinc replaces hydrogen in hydrochloric acid.
  • For 12: It is a synthesis reaction as sodium and chlorine combine to form sodium chloride.
  • For 13: It is a neutralization reaction (a type of double - replacement) as an acid and a base react to form a salt and water.
  • For 14: It is a decomposition reaction as water breaks into hydrogen and oxygen.
  • For 15: It is a single - replacement reaction as zinc replaces copper in copper sulfate.

Answer:

  1. Synthesis
  2. Decomposition
  3. Double - replacement
  4. Single - replacement
  5. Synthesis
  6. Neutralization (Double - replacement)
  7. Decomposition
  8. Single - replacement