Chemical Reactions and Balancing Equations
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Questions and Answers

What are the reactants in the following equation: HCl(aq) + NaHCO₃(aq)→ CO₂(g) + H₂O(l) + NaCl(aq)?

  • HCl, NaHCO₃ (correct)
  • H₂O, NaCl, CO₂
  • NaHCO₃, H₂O
  • CO₂, H₂O
  • HCl, CO₂

    • Predict the products and balance the following reaction: Ag₂SO₄(aq) + NaCl(aq) →

  • Ag₂SO₄(aq) + 2NaCl(aq) → Na₂SO₄(aq) + 2AgCl(s) (correct)
  • Ag₂SO₄(aq) + NaCl(aq) → NaSO₄(aq) + AgCl(s)
  • Ag₂SO₄(aq) + NaCl(aq) → Na₂SO₄(aq) + 2AgCl(aq)
  • 2Ag₂SO₄(aq) + 4NaCl(aq) → Na₂SO₄(aq) + 4AgCl(s)

    • Balance the following chemical equation (if necessary): ZnS + AlP → Zn3P2 + Al2S3

    3ZnS + 2AlP → Zn3P2 + Al2S3

    Balance the following chemical equation (if necessary): MnO2 + HCl = MnCl2 + H2O + Cl2

    <p>MnO2 + 4HCl → MnCl2 + 2H2O + Cl2</p> Signup and view all the answers

    Balance the following chemical equation (if necessary): KOH + H2S = H2O + K2S

    <p>2KOH + H2S → 2H2O + K2S</p> Signup and view all the answers

    Balance the following chemical equation (if necessary): Mg(OH)2 + HCl = H2O + MgCl2

    <p>Mg(OH)2 + 2HCl → 2H2O + MgCl2</p> Signup and view all the answers

    Balance the following chemical equation (if necessary): Mg + N2 = Mg3N2

    <p>3Mg + N2 → Mg3N2</p> Signup and view all the answers

    Balance the following chemical equation (if necessary): Mg3(PO4)2 = Mg + PO4

    <p>Mg3(PO4)2 = 3Mg + 2PO4</p> Signup and view all the answers

    Balance the following chemical equation (if necessary): Zn + AgNO3 = Ag + Zn(NO3)2

    <p>Zn + 2AgNO3 = 2Ag + Zn(NO3)2</p> Signup and view all the answers

    Balance the following chemical equation (if necessary): Mg + HCl = H2 + MgCl2

    <p>Mg + 2HCl = H2 + MgCl2</p> Signup and view all the answers

    Complete the balanced neutralization equation for the reaction below: LiOH(aq) + HBr(aq)

    <p>HBr(aq) + LiOH(aq) → LiBr(aq) + H₂O(l)</p> Signup and view all the answers

    Complete the balanced neutralization equation for the reaction below: KOH(aq) + H₂SO₄(aq)

    <p>2 KOH(aq) + H₂SO₄(aq) → K₂SO₄(aq) + 2 H₂O(l)</p> Signup and view all the answers

    Complete the balanced neutralization equation for the reaction below: HClO₄(aq) + CsOH(aq)

    <p>HClO₄(aq) + CsOH(aq) → CsClO₄(aq) + H₂O(l)</p> Signup and view all the answers

    Complete the balanced molecular chemical equation for the reaction below: Na2CO3(aq) + Ca(NO3)2(aq)

    <p>Na₂CO₃(aq) + Ca(NO₃)₂(aq) → CaCO₃(s) + 2 NaNO₃(aq)</p> Signup and view all the answers

    Study Notes

    Chemical Reactions and Balancing Equations

    • Reactants in HCl and NaHCO₃ Reaction: HCl(aq) and NaHCO₃(aq) are the reactants, producing CO₂(g), H₂O(l), and NaCl(aq).
    • Products of Silver Sulfate and Sodium Chloride Reaction: The balanced equation for the reaction of Ag₂SO₄(aq) and NaCl(aq) is Ag₂SO₄(aq) + 2NaCl(aq) → Na₂SO₄(aq) + 2AgCl(s).
    • Balancing Zinc Sulfide and Aluminum Phosphide Reaction: The balanced form is 3ZnS + 2AlP → Zn3P2 + Al2S3.
    • Balancing Manganese Dioxide and Hydrochloric Acid Reaction: The balanced equation is MnO2 + 4HCl → MnCl2 + 2H2O + Cl2.
    • Balancing Potassium Hydroxide and Hydrogen Sulfide Reaction: The reaction balances to 2KOH + H2S → 2H2O + K2S.
    • Balancing Magnesium Hydroxide and Hydrochloric Acid Reaction: The correct reaction is Mg(OH)2 + 2HCl → 2H2O + MgCl2.
    • Balancing Magnesium and Nitrogen Gas Reaction: The balanced equation is 3Mg + N2 → Mg3N2.
    • Balancing Magnesium Phosphate Reaction: Translates to Mg3(PO4)2 = 3Mg + 2PO4.
    • Balancing Zinc and Silver Nitrate Reaction: The balanced equation is Zn + 2AgNO3 = 2Ag + Zn(NO3)2.
    • Balancing Magnesium and Hydrochloric Acid Reaction: Balanced as Mg + 2HCl = H2 + MgCl2.

    Neutralization Reactions

    • Neutralization of Sulfuric Acid and Magnesium Hydroxide: Not provided; exercise in completing the balanced neutralization equation.
    • Neutralization of Lithium Hydroxide and Hydrobromic Acid: The balanced reaction is HBr(aq) + LiOH(aq) → LiBr(aq) + H₂O(l).
    • Neutralization of Potassium Hydroxide and Sulfuric Acid: The balanced equation reads 2 KOH(aq) + H₂SO₄(aq) → K₂SO₄(aq) + 2 H₂O(l).
    • Neutralization of Perchloric Acid and Cesium Hydroxide: The reaction balances as HClO₄(aq) + CsOH(aq) → CsClO₄(aq) + H₂O(l).
    • Double Replacement Reaction of Sodium Carbonate and Calcium Nitrate: Produces solid calcium carbonate; Na₂CO₃(aq) + Ca(NO₃)₂(aq) → CaCO₃(s) + 2 NaNO₃(aq).

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    Description

    Test your knowledge on balancing chemical equations with this quiz. It covers various reactions including those of HCl with NaHCO₃ and more complex interactions like zinc sulfide with aluminum phosphide. Perfect for chemistry students looking to strengthen their skills in understanding reactants and products.

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