Chemical Equations 2: Is it Balanced?
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Questions and Answers

Is the following chemical equation balanced? 2Na + F₂ → 2NaF

False

Is the following chemical equation balanced? 2K + 2I₂ → 2KI

False

Is the following chemical equation balanced? BaCl₂ + Na₂SO₄ → NaCl + BaSO₄

False

Is the following chemical equation balanced? CH₄ + 2O₂ → CO₂ + 2H₂O

<p>False</p> Signup and view all the answers

Is the following chemical equation balanced? 2Na + MgF₂ → 2NaF + Mg

<p>False</p> Signup and view all the answers

Is the following chemical equation balanced? 2LiCl + Mg(NO₃)₂ → 2LiNO₃ + 2MgCl₂

<p>False</p> Signup and view all the answers

Is the following chemical equation balanced? 2C₂H₆ + 7O₂ → 4CO₂ + 6H₂O

<p>False</p> Signup and view all the answers

Is the following chemical equation balanced? 2C + O₂ → CO₂

<p>False</p> Signup and view all the answers

Is the following chemical equation balanced? 2CO + O₂ → 2CO₂

<p>False</p> Signup and view all the answers

Is the following chemical equation balanced? Cu + 2HCl → CuCl₂ + 2H₂

<p>False</p> Signup and view all the answers

Is the following chemical equation balanced? C₃H₈ + 5O₂ → 3CO₂ + 4H₂O

<p>False</p> Signup and view all the answers

Is the following chemical equation balanced? 2Mg + Cl₂ → MgCl₂

<p>False</p> Signup and view all the answers

Is the following chemical equation balanced? 2Mg + O₂ → 2MgO

<p>False</p> Signup and view all the answers

Is the following chemical equation balanced? 2Sn + 2HF → SnF₂ + H₂

<p>False</p> Signup and view all the answers

Is the following chemical equation balanced? Mg + 2HCl → MgCl₂ + H₂

<p>False</p> Signup and view all the answers

Is the following chemical equation balanced? 2C₄H₁₀ + 10O₂ → 8CO₂ + 10H₂O

<p>False</p> Signup and view all the answers

Is the following chemical equation balanced? C + O₂ → CO₂

<p>False</p> Signup and view all the answers

Is the following chemical equation balanced? 4Fe + 3O₂ → 4Fe₂O₃

<p>False</p> Signup and view all the answers

Is the following chemical equation balanced? CS₂ + 3O₂ → CO₂ + 2SO₂

<p>False</p> Signup and view all the answers

Is the following chemical equation balanced? 2MgS + 2O₂ → 2MgO + 2SO₂

<p>False</p> Signup and view all the answers

Is the following chemical equation balanced? C₅H₁₂ + 8O₂ → 5CO₂ + 6H₂O

<p>False</p> Signup and view all the answers

Is the following chemical equation balanced? MgO + 4SO₃ → MgSO₄

<p>False</p> Signup and view all the answers

Is the following chemical equation balanced? 2NaOH + CO₂ → Na₂CO₃ + H₂O

<p>False</p> Signup and view all the answers

Is the following chemical equation balanced? Mg + 2HF → MgF₂ + 2H₂

<p>False</p> Signup and view all the answers

Is the following chemical equation balanced? N₂ + O₂ → 2NO

<p>False</p> Signup and view all the answers

Is the following chemical equation balanced? PCl₃ + 2Cl₂ → PCl₅

<p>False</p> Signup and view all the answers

Is the following chemical equation balanced? 2H₂ + O₂ → 2H₂O

<p>False</p> Signup and view all the answers

Is the following chemical equation balanced? 2Al + 2Cl₂ → 2AlCl₃

<p>False</p> Signup and view all the answers

Is the following chemical equation balanced? 3Mg + 2AlCl₃ → 3MgCl₂ + 2Al

<p>False</p> Signup and view all the answers

Is the following chemical equation balanced? C₇H₁₆ + 8O₂ → 7CO₂ + 8H₂O

<p>False</p> Signup and view all the answers

Is the following chemical equation balanced? Cu + Cl₂ → CuCl₂

<p>False</p> Signup and view all the answers

Is the following chemical equation balanced? 2SO₂ + 3O₂ → 2SO₃

<p>False</p> Signup and view all the answers

Is the following chemical equation balanced? 2K + 2H₂O → 2KOH + H₂

<p>False</p> Signup and view all the answers

Is the following chemical equation balanced? 2Al + 3O₂ → 2Al₂O₃

<p>False</p> Signup and view all the answers

Is the following chemical equation balanced? 2C₈H₁₈ + 25O₂ → 16CO₂ + 18H₂O

<p>False</p> Signup and view all the answers

Study Notes

Chemical Equations Overview

  • Balanced equations have equal numbers of each type of atom on both sides, adhering to the law of conservation of mass.

Examples of Balanced Equations

  • 2Na + F₂ → 2NaF: Balanced equation; 2 sodium atoms and 2 fluorine atoms on both sides.
  • CH₄ + 2O₂ → CO₂ + 2H₂O: Balanced; carbon and hydrogen atoms are equal on both sides.
  • 2Na + MgF₂ → 2NaF + Mg: Balanced; maintains atom count across reactants and products.
  • 2C₂H₆ + 7O₂ → 4CO₂ + 6H₂O: Balanced; every atom matches corresponding reactants and products.
  • 2CO + O₂ → 2CO₂: Balanced reaction with equal carbon and oxygen atoms.

Examples of Unbalanced Equations

  • 2K + 2I₂ → 2KI: Not balanced; iodine atoms differ on both sides.
  • BaCl₂ + Na₂SO₄ → NaCl + BaSO₄: Unbalanced due to differing sodium and chloride counts.
  • Cu + 2HCl → CuCl₂ + 2H₂: Not balanced; hydrogen and chlorine atoms don't match.
  • 2C + O₂ → CO₂: Not balanced; carbon atoms aren't equal.
  • 2Mg + Cl₂ → MgCl₂: Unbalanced due to chlorides not matching.

Additional Cases

  • C + O₂ → CO₂: Balanced equation; equal count of carbon and oxygen.
  • 2H₂ + O₂ → 2H₂O: Fully balanced; both hydrogen and oxygen counts line up.
  • 2K + 2H₂O → 2KOH + H₂: Balanced; potassium, hydrogen, and oxygen atoms match.

Common Errors

  • Misalignment in the number of reactants and products often causes unbalanced equations, failing the conservation of mass principle.
  • Always verify atom counts for all reactants and products to determine balance.

Importance of Balancing

  • Balancing chemical equations is crucial for predicting the outcomes of reactions and ensuring accurate calculations in stoichiometry.
  • Understanding balance helps in demonstrating the conservation of matter in chemical reactions.

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Test your understanding of balancing chemical equations with this quiz. Determine whether the given chemical equations are balanced or not. Improve your skills and knowledge in chemistry through these thought-provoking questions.

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