3. Chemical Reactions

Balancing Chemical Equations

Open Question
Which coefficient of O2 is needed to balance the equation C₃H₈ + O₂ → 3 CO₂ + 4 H₂O?
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Open Question
Based on your experience in the simulation, what do the numbers 3 and 4 refer to in 3 NH₄?
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Open Question
The equilibrium system between hydrogen gas, bromine gas, and hydrogen bromide gas is given.
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Open Question
When balancing a chemical equation, which of the following is/are permissible?
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Open Question
When H₂SO₄is neutralized by NaOH in aqueous solution, the net ionic equation is ________.
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Open Question
Write a balanced ionic equation for this acid-base reaction: Ca(OH)₂(aq) + 2 CH₃CO₂H(aq) →
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Open Question
How does a balanced chemical equation show that mass is never lost or gained in a chemical reaction?
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Open Question
In a chemical equation, the symbol (aq) indicates that the substance is
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Open Question
Balance the chemical reaction equation P₄(s) + Cl₂(g) → PCl₅(g)
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Open Question
How do you use the coefficient to calculate the number of atoms in each molecule
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Open Question
Which of the following balanced equations correctly represents the dissociation of K₂SO₄ in water?
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Open Question
How does a chemical equation show that matter is always conserved in a chemical reaction?
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Multiple Choice
For the balanced chemical equation: 2C2H6(g) + 7O2(g) → 4CO2(g) + 6H2O(g), what is the standard enthalpy change (ΔH°) for the reaction using the standard heats of formation?
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Multiple Choice
Which of the following is the correct balanced equation for the reaction between aluminum and permanganate ions in an aqueous solution?
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Multiple Choice
What is the balanced chemical equation for the reaction between aluminum sulfate and silver nitrate?
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