3rd Chapter Long Quiz (Sayon ra pramis)

What is the chemical name of Zn₃N₂?

• Zinc (III) Nitride

• Zinc Nitride

• Zinc Nitrogenide

• Zinc (II) Nitride

What coefficient should be added in the blank

to balance the following reaction?

Mg +___HCl → MgCl2 + H2

• 1

• 2

• 3

• 4

How many moles do we need to have

452 g of NaOH?

• 11.3 mol

• 11.21 mol

• 13.1 mol

• 13.4 mol

What is the mass of 3.37 mol of Na2SO4?

• 454.87 g

• 478.54 g

• 474.58 g

• 487.45 g

Find the percentage of Hydrogen present in

Ca(OH)2

• 7.21%

• 2.70%

• 3.54%

• 4.58%

Which of the following molecules has an

incorrect label of its naming system?

• RbBr (Type I)

• SO₂ (Type III)

• Mg₃N₂ (Type II)

• P₂O₃ (Type III)

Which of the following chemical equations is

balanced?

• Na + 2O₂ →Na₂O₂

• Fe + H₂O → Fe₃O₄

• P₄ + 4O₂ → P₄O₁₀

• 2H₂ + 2O → 2H₂O

What is the chemical name of Pb₂S₃?

• Lead Sulfide

• Lead (II) Sulfide

• Lead (III) Sulfide

• Lead Sulfuride

How many molecules are present in

4.2 mol of CaCl₂?

• 2.53x10²⁴

• 2.53x10²³

• 2.35x10²⁴

• 2.35x10²³

What is the chemical name of PCl₅?

• Phosphorus Chloride

• Phosphorus (I) Pentachloride

• Phosphorus Pentachloride

• Phosphorus (V) Chloride