Balancing Chemical Equations Quiz
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Questions and Answers

How many moles of nitrogen trifluoride are produced when 3.5 moles of nitrogen react with excess fluorine?

  • 10.5 moles
  • 1.75 moles
  • 7.0 moles (correct)
  • 3.5 moles

    • If 0.034 moles of nitrogen are reacted, how many moles of fluorine will react?

  • 0.034 moles
  • 0.017 moles
  • 0.051 moles
  • 0.068 moles (correct)

    • How many moles of water are produced when 0.00901 moles of oxygen are reacted with excess hexane?

  • 0.0045 moles (correct)
  • 0.0182 moles
  • 0.01352 moles
  • 0.00901 moles

    • How many molecules of water are produced from the reaction of 0.00901 moles of oxygen?

    <p>3.01 x 10^20 molecules</p> Signup and view all the answers

    How many moles of carbon dioxide will be produced from the reaction of 6.70 moles of potassium bicarbonate with excess hydrobromic acid?

    <p>3.35 moles</p> Signup and view all the answers

    If 0.45 moles of hydrobromic acid reacts with excess potassium bicarbonate, how many molecules of water will be produced?

    <p>1.35 x 10^23 molecules</p> Signup and view all the answers

    How many moles of sodium bromide will be produced from 70.9 moles of sodium sulfite reacting with excess gallium bromide?

    <p>70.9 moles</p> Signup and view all the answers

    How many molecules of sodium bromide are produced from 70.9 moles of sodium sulfite?

    <p>4.27 x 10^24 molecules</p> Signup and view all the answers

    How many moles of nitrogen trifluoride are needed to react with 2.3 x 10^-3 moles of tin (II) oxide?

    <p>0.00115 moles</p> Signup and view all the answers

    How many molecules of tin (II) oxide are required to produce 7.02 x 10^24 molecules of nitrogen trifluoride?

    <p>1.40 x 10^24 molecules</p> Signup and view all the answers

    How do you balance the equation ___ N2 + ___ F2 → ___ NF3?

    <p>1 N2 + 3 F2 → 2 NF3</p> Signup and view all the answers

    When 0.00901 moles of oxygen reacts with excess hexane, how many moles of carbon dioxide are produced?

    <p>0.004505 moles</p> Signup and view all the answers

    In the reaction ___ HBr + ___ KHCO3 → ___ H2O + ___ KBr + ___ CO2, how many moles of water are produced when 6.70 moles of potassium bicarbonate react with excess hydrobromic acid?

    <p>6.70 moles</p> Signup and view all the answers

    How many molecules of carbon dioxide are produced from the reaction of 6.70 moles of KHCO3 with excess HBr?

    <p>1.34 x 10^24 molecules</p> Signup and view all the answers

    In the reaction of gallium bromide with sodium sulfite, if 70.9 moles of sodium sulfite reacts, how many moles of gallium sulfite are produced?

    <p>70.9 moles</p> Signup and view all the answers

    How many molecules of sodium bromide will be produced from the reaction of 70.9 moles of sodium sulfite?

    <p>8.54 x 10^24 molecules</p> Signup and view all the answers

    What is the balanced equation for the reaction of tin (II) oxide with nitrogen trifluoride?

    <p>2 SnO + 6 NF3 → 2 SnF2 + 3 N2O3</p> Signup and view all the answers

    If 2.3 x 10^-3 moles of tin (II) oxide is used in reaction with nitrogen trifluoride, how many moles of nitrogen trifluoride are needed?

    <p>6.9 x 10^-3 moles</p> Signup and view all the answers

    How many molecules of nitrogen trifluoride are produced from 7.02 x 10^24 molecules of nitrogen trifluoride?

    <p>1 mol</p> Signup and view all the answers

    What is the balanced chemical equation for the reaction of nitrogen and fluorine to produce nitrogen trifluoride?

    <p>1 N2 + 3 F2 → 2 NF3</p> Signup and view all the answers

    In the balanced equation of the reaction between hexane and oxygen, how many moles of carbon dioxide are produced when oxygen reacts with excess hexane?

    <p>2 moles</p> Signup and view all the answers

    How many molecules of water are produced from 0.00901 moles of oxygen reacting with excess hexane?

    <p>3.61 x 10^22 molecules</p> Signup and view all the answers

    What is the number of moles of carbon dioxide produced in the reaction of potassium bicarbonate with hydrobromic acid when 6.70 moles of KHCO3 are used?

    <p>3.35 moles</p> Signup and view all the answers

    How many moles of sodium bromide are produced when 70.9 moles of sodium sulfite react with excess gallium bromide?

    <p>141.8 moles</p> Signup and view all the answers

    If 0.45 moles of hydrobromic acid react with potassium bicarbonate, how many moles of water are produced?

    <p>0.30 moles</p> Signup and view all the answers

    In reactions involving tin (II) oxide and nitrogen trifluoride, if 2.3 x 10^-3 moles of tin (II) oxide are used, how many moles of nitrogen trifluoride are required?

    <p>4.6 x 10^-3 moles</p> Signup and view all the answers

    Calculate how many molecules of water could be produced if 6.70 moles of potassium bicarbonate react completely with hydrobromic acid.

    <p>1.61 x 10^24 molecules</p> Signup and view all the answers

    When reacting with nitrogen trifluoride, how many moles of tin (II) fluoride can be obtained from a given amount of tin (II) oxide?

    <p>Directly relates to the moles of nitrogen trifluoride used</p> Signup and view all the answers

    Study Notes

    Balancing Chemical Equations

    • N₂ + 3F₂ → 2NF₃ (Balanced equation)

    • If 3.5 moles of nitrogen react, 7 moles of NF₃ will be produced (using stoichiometry)

    • 0.034 moles of nitrogen will react with 0.102 moles of fluorine (using stoichiometry)

    • 0.068 moles of nitrogen trifluoride will be produced (using stoichiometry)

    • 4.1 x 10²² molecules of NF₃ will be produced (using Avogadro's number)

    • C₆H₁₀ + 9O₂ → 6CO₂ + 5H₂O (Balanced equation)

    • If 0.00901 moles of oxygen react, 0.00451 moles of water will be produced (using stoichiometry)

    • 2.72 x 10²² molecules of water will be produced (using Avogadro's number)

    • HBr + KHCO₃ → H₂O + KBr + CO₂ (Balanced equation)

    • If 6.70 moles of KHCO₃ react, 6.70 moles of CO₂ will be produced (using stoichiometry)

    • 2.7 x 10²³ molecules of water will be produced from 0.45 moles of HBr (using stoichiometry and Avogadro's number)

    Gallium Bromide and Sodium Sulfite Reaction

    • GaBr₃ + Na₂SO₃ → Ga₂(SO₃)₃ + 6NaBr (Balanced equation)
    • If 70.9 mol of Na₂SO₃ reacts, 425.4 mol of NaBr will be produced (using stoichiometry)
    • 2.56 x 10²⁶ molecules of NaBr (using stoichiometry and Avogadro's number)

    Tin (II) Oxide and Nitrogen Trifluoride

    • SnO + 2NF₃ → SnF₂ + N₂O₃ (Balanced equation)
    • 4.6 x 10⁻³ moles of NF₃ are needed to react with 2.3 x 10⁻³ moles of SnO (using stoichiometry)
    • 1.5 x 10²² molecules of SnO are required to produce 7.02 x 10²⁴ molecules of NF₃. (using Avogadro's and stoichiometry)

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    Description

    Test your knowledge on balancing chemical equations and stoichiometry. This quiz covers different reactions including nitrogen trifluoride, water production, and gallium bromide with sodium sulfite reactions. Challenge yourself to solve various stoichiometric problems using the balanced equations provided.

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