CHEM H Final Exam Review Pt 2

What is the formula for an ionic compound made of carbon and oxygen?

• CO₂

• CO

• O₂C

• No ionic cmpds made of C and O

What is the name of the compound whose formula is Na₂O?

• disodium monoxide

• sodium monoxide

• disodium oxide

• sodium oxide

• none of the above

Which of the following is NOT a possible compound of carbon and oxygen? Select all that apply

• CO

• C₂O₃

• CO₂

• C₂O

What is the name of CoS?

• cobalt monosulfide

• cobalt(II) sulfide

• cobaltous sulfur

• cobalt sulfide

• none of the above

What would the formula of diiodine pentasulfide be?

• I₅S₂

• I₂S₅

• I₄S₉

• I₅S₇

• none of the above

What is correct name of the compound whose formula is BF₃?

• boron(III) trifluoride

• monoboron trifluoride

• boron fluoride

• boron trifluoride

• none of the above

What is the name of HNO_{2 (aq)}?

• Nitrous acid
• Nitric acid

• Hydrogen nitrodioxide

• All are correct

• 0.142

• 0.0638

• none of the above

How many atoms are in 15.6 grams of silicon?

• 1.08 x 10²⁴

• 9.22 x 10^-25

• 2.99 x 10^-24

• 3.34 x 10²³

Calculate the molar mass of calcium nitrate.

• 164.10 g/mol

• 132.10 g/mol

• 102.09 g/mol

• 136.09 g/mol

• none of the above