Classifying Chemical Reactions Quiz

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Questions and Answers

What type of reaction is represented by the equation Mg + I₂ → MgI₂?

  • Decomposition
  • Synthesis (correct)
  • Single Replacement
  • Double Replacement

What type of reaction is represented by the equation CuCl₂ + H₂S → CuS + HCl?

  • Double Replacement (correct)
  • Synthesis
  • Decomposition
  • Single Replacement

What type of reaction is represented by the equation NaOH + HClO₄ → NaClO₄ + H₂O?

  • Decomposition
  • Double Replacement (correct)
  • Synthesis
  • Single Replacement

What type of reaction is represented by the equation ZnCO₃ → ZnO + CO₂?

<p>Decomposition (B)</p> Signup and view all the answers

What type of reaction is represented by the equation HCl + Zn → ZnCl₂ + H₂?

<p>Single Replacement (A)</p> Signup and view all the answers

What type of reaction is represented by the equation Na + MgCl₂ → NaCl + Mg?

<p>Single Replacement (D)</p> Signup and view all the answers

What type of reaction is represented by the equation CaCl₂ + K₂CO₃ → CaCO₃ + KCl?

<p>Double Replacement (A)</p> Signup and view all the answers

What type of reaction is represented by the equation K + Cl₂ → 2KCl?

<p>Synthesis (D)</p> Signup and view all the answers

What type of reaction is represented by the equation H₂CO₃ → CO₂ + H₂O?

<p>Decomposition (A)</p> Signup and view all the answers

What type of reaction is represented by the equation H₂SO₄ + KOH → K₂SO₄ + H₂O?

<p>Double Replacement (C)</p> Signup and view all the answers

What type of reaction is represented by the equation Al₂(CO₃)₃ → Al₂O₃ + CO₂?

<p>Decomposition (B)</p> Signup and view all the answers

What type of reaction is represented by the equation Al + O₂ → Al₂O₃?

<p>Synthesis (A)</p> Signup and view all the answers

What type of reaction is represented by the equation Mg + F₂ → MgF₂?

<p>Synthesis (D)</p> Signup and view all the answers

What type of reaction is represented by the equation PbSO₄ + AgNO₃ → Pb(NO₃)₂ + Ag₂(SO₄)?

<p>Double Replacement (D)</p> Signup and view all the answers

What type of reaction is represented by the equation Ca + AgCl → CaCl₂ + Ag?

<p>Single Replacement (C)</p> Signup and view all the answers

What type of reaction is represented by the equation HCl + NaOH → NaCl + H₂O?

<p>Double Replacement (C)</p> Signup and view all the answers

What type of reaction is represented by the equation Li + S → Li₂S?

<p>Synthesis (B)</p> Signup and view all the answers

What type of reaction is represented by the equation HCl + Mg(OH)₂ → H₂O + MgCl₂?

<p>Double Replacement (D)</p> Signup and view all the answers

What type of reaction is represented by the equation Mg(OH)₂ → MgO + H₂?

<p>Decomposition (C)</p> Signup and view all the answers

What type of reaction is represented by the equation Fe(OH)₃ → FeO + H₂?

<p>Decomposition (C)</p> Signup and view all the answers

What type of reaction is represented by the equation Na₂CO₃ → CO₂ + NaO?

<p>Decomposition (D)</p> Signup and view all the answers

What type of reaction is represented by the equation K₂CO₃ → CO₂ + K₂O?

<p>Decomposition (D)</p> Signup and view all the answers

What type of reaction is represented by the equation Ca(OH)₂ + H₃PO₄ → H₂O + Ca₃(PO₄)₂?

<p>Double Replacement (D)</p> Signup and view all the answers

What type of reaction is represented by the equation Mg + HCl → H₂ + MgCl₂?

<p>Single Replacement (A)</p> Signup and view all the answers

What type of reaction is represented by the equation KBr + Cl₂ → KCl + Br₂?

<p>Single Replacement (A)</p> Signup and view all the answers

What type of reaction is represented by the equation FeS + HCl → FeCl₂ + H₂S?

<p>Double Replacement (D)</p> Signup and view all the answers

What type of reaction is represented by the equation KI + Pb(NO₃)₂ → K(NO₃) + PbI₂?

<p>Double Replacement (A)</p> Signup and view all the answers

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Study Notes

Types of Chemical Reactions

  • Synthesis Reactions involve two or more reactants combining to form a single product.

    • Example: Mg + Iâ‚‚ → MgIâ‚‚
    • Example: K + Clâ‚‚ → 2KCl
    • Example: Al + Oâ‚‚ → Alâ‚‚O₃
    • Example: Mg + Fâ‚‚ → MgFâ‚‚
    • Example: Li + S → Liâ‚‚S

  • Double Replacement Reactions occur when two compounds exchange ions or bonds to form two new compounds.

    • Example: CuClâ‚‚ + Hâ‚‚S → CuS + HCl
    • Example: NaOH + HClOâ‚„ → NaClOâ‚„ + Hâ‚‚O
    • Example: CaClâ‚‚ + Kâ‚‚CO₃ → CaCO₃ + KCl
    • Example: Hâ‚‚SOâ‚„ + KOH → Kâ‚‚SOâ‚„ + Hâ‚‚O
    • Example: PbSOâ‚„ + AgNO₃ → Pb(NO₃)â‚‚ + Agâ‚‚(SOâ‚„)
    • Example: HCl + NaOH → NaCl + Hâ‚‚O
    • Example: HCl + Mg(OH)â‚‚ → Hâ‚‚O + MgClâ‚‚
    • Example: FeS + HCl → FeClâ‚‚ + Hâ‚‚S
    • Example: KI + Pb(NO₃)â‚‚ → K(NO₃) + PbIâ‚‚

  • Decomposition Reactions involve a single compound breaking down into two or more products.

    • Example: ZnCO₃ → ZnO + COâ‚‚
    • Example: Hâ‚‚CO₃ → COâ‚‚ + Hâ‚‚O
    • Example: Alâ‚‚(CO₃)₃ → Alâ‚‚O₃ + COâ‚‚
    • Example: Mg(OH)â‚‚ → MgO + Hâ‚‚
    • Example: Fe(OH)₃ → FeO + Hâ‚‚
    • Example: Naâ‚‚CO₃ → COâ‚‚ + NaO
    • Example: Kâ‚‚CO₃ → COâ‚‚ + Kâ‚‚O

  • Single Replacement Reactions occur when an element reacts with a compound, displacing another element from it.

    • Example: HCl + Zn → ZnClâ‚‚ + Hâ‚‚
    • Example: Na + MgClâ‚‚ → NaCl + Mg
    • Example: Ca + AgCl → CaClâ‚‚ + Ag
    • Example: Mg + HCl → Hâ‚‚ + MgClâ‚‚
    • Example: KBr + Clâ‚‚ → KCl + Brâ‚‚

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