SI Session 2

What type of equation is this?

2KI (aq) + Pb(NO₃)₂ (aq) -> PbI₂ (s) + 2KNO₃ (aq)

• Molecular Equation

• Net Ionic Equation

• Complete Ionic Equation

• Compound Equation

What type of equation is this?

2OH^- (aq) + Mg²⁺ (aq) -> Mg(OH)₂ (s)

• Compound Equation

• Molecular Equation

• Net Ionic Equation

• Combustion Equation

Which is the reducing agent?

2Na (s) +Cl₂ (g) -> 2NaCl (s)

• Chloride

• Nickel

• Carbon

• Sodium

Which is being oxidized?

2Na (s) +Cl₂ (g) -> 2NaCl (s)

• NaCl

• Na

• Cl

• C

How many moles of I₂ are required to react with 0.429 mol of Al according to the following equation?

2Al + 3I₂ -> 2AlI₃

• 0.644 ml

• 0.644 mol

• 0.821 mol

• 1.434 ml

If we have 5 molecules of CH₄ and 8 molecules of O₂, which is the limiting reactant?

CH₄ (g) + 2O₂ (g) -> CO₂ (g) + 2H₂O (g)

• O₂

• CH₄

• CO₂

• H₂O

An aqueous solution of Mg(NO₃)₂ and NaOH generates the solid precipitate Mg(OH)₂. Which of the following would NOT appear in the corresponding net ionic reaction?

• NO₃^-

• Mg²⁺

• OH^-

• All will appear

Complete the balanced dissociation equation for the compound below in an aqueous solution. If the compound does not dissociate, write NR after the reaction arrow.

AlBr₃(s) →

• NR

• Al³⁺(aq) + 3 Br⁻(aq)→AlBr₃(s)

• AlBr₃(aq) → Al³⁺(s) + 3 Br⁻(aq)

• AlBr₃(s) → Al³⁺(aq) + 3 Br⁻(aq)

The oxidation number of the sulfur atom in SF₄ is

• 3

• 4

• 5

• 6

If 10.0 moles of O₂ are reacted with excess NO in the reaction below, and only 8.4 mol of NO₂ were collected, then what is the percent yield for the reaction?

2 NO (g) + O₂ (g) → 2 NO₂ (g)

• 30%

• 85%

• 42%

• 46%