Mole/formula pract. 2

What is the charge on Pb if the formula for the compound is PbO₂?

• Lead III
• Lead IV
• Lead II
• Lead V

What is the prefix for naming molecular compounds for 7

• Septa
• hexa
• nona
• hepta

Which of the following would be an ionic compound

• CaCl₂
• NO₂
• S₂O₉
• H₂O

Which of the following would be a molecular compound?

• NaCl
• MgO
• SO₂
• NH₄NO₃

What is the name for the following compound?  SO₃

• sulfur oxide
• sulfur III oxide
• sulfur trioxide
• trisulfur oxide

Write the formula for Iron III phoshide

• FeP
• FePO₄
• Fe₃P
• FePO₃

What is the formula for calcium fluoride? 

• CaF
• CaF₂
• CaFO₄
• Ca₂F

What is the formula for barium oxalate

• BaC₂O₄
• Ba₂C₂O₄
• Ba(C₂O₄)₂
• Ba₂(C₂O₄)₂

how many particles are in 3.5 grams of sulfur?

• 2.11 X 10²⁴ atoms
• 6.57 X 10²² atoms
• .11 atoms
• 6.02 X 10²³

What is the molar mass for sulfuric acid?

• 79.33 g
• 112.52 g
• 49.08 g
• 98.09 g