AP Chemistry Unit 4 Thou Shalt Not Forget

What is a limiting reactant?

• The reactant that runs out first

• The reactant that has the lowest mass

• The reactant with the smallest coefficient

• The reactant with the lowest molar mass

What is the formula for calculating % yield?

• actual/theoretical *100

• theoretical/actual *100

Tags

NGSS.HS-PS1-7

1.What type of reaction is this?

3O₂ + 2FeCl₃ --> 2Fe₂O₃ + 3Cl₂

• Single Displacement

• Decomposition

• Double Displacement

• Combustion

What formula do we use for dilution calculations?

• M₁V₁=M₂V₂

• D=m/V

• V₁=M₂

• Total Volume/Partial Volume

Acids

• donate electrons

• donate protons

• accept protons

• donate protons

Bases

• donate electrons

• accept electrons

• donate protons

• accept protons

Combustion reactions produce what two substances?

• Water Vapor and Carbon Dioxide

• Carbon Dioxide and Oxygen

• Oxygen and Water Vapor

Losing electrons is ________________, gaining electrons is ________________

• oxidation, reduction

• reduction, oxidation

What is the oxidation number of N in NO₂^1-?

• 0

• -1

• 2

• 3

What is the oxidation number of P in PO₄^3-?

• 0

• 4

• 5

• -2