3. Chemical Reactions

Balancing Chemical Equations

Open Question
Liquid octane reacts with oxygen gas to form carbon dioxide gas and water vapor.
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Open Question
Gaseous carbon monoxide reacts with hydrogen gas to form gaseous methane (ch4) and liquid water.
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Open Question
Solid aluminum sulfide reacts with water to form solid aluminum hydroxide and gaseous hydrogen sulfide.
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Open Question
How many moles of o2 are in the chemical equation when balanced using the lowest whole numbers?
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Open Question
The scientific principle which is the basis for balancing chemical equations is
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Open Question
Na₂SO₃ represents sodium sulfite. What does the 4 mean in the formula 4 Na₂SO₃?
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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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