Checkpoint 4 Review

What is the relationship between empirical and molecular formulas?

• they are not related

• molecular formulas are multiples of empirical formulas

• empirical formulas are multiples of molecular formulas

An empirical formula has the ​ (a)   of elements. A molecular formula is a ​ (b)   of the empirical formula.

• lowest ratio
• multiple
• highest ratio
• single

What is the empirical formula for glucose, C₆H₁₂O₆?

• CH₂O

• C₂H₄O₂

• C₃H₆O₃

• C₆H₁₂O₆

Tags

NGSS.MS-PS1-1

Which formulas could represent the empirical formula and the molecular formula of a given compound?

• CH₄, C₅H₁₂

• CH₂, C₃H₆

• CH₂O, C₄H₆O₄

• CHO, C₆H₁₂O₆

Tags

NGSS.HS-PS1-7

match the correct formula with its name

• hydrochloric acid

• NaCl

• sodium chloride

• H₂O

• dihydrogen monoxide

• Fe₂O₃

• iron (III) oxide

• FeO

• iron (II) oxide

• HCl

What is the chemical formula for sodium hydroxide?

• SHO

• SOH

• NaHo

• NaOH

Which is the correct formula for dinitrogen monoxide?

• N₂O₃

• N₂O

• NO

• NO₂

When potassium reacts with iodine, they form Potassium Iodide. Which of the following correctly describes this compound?

• They form the compound KI, which is covalent.

• They form the compound PI₃, which is covalent.

• They form the compound KI, which is ionic.

• They form the compound PI₃, which is ionic.

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What is the IUPAC name for the compound CoBr₂?

• Cobalt(I) dibromide

• Cobalt(I) bromide

• Cobalt(II) dibromide

• Cobalt(II) bromide

What is the name for NaClO₃?

• Sodium chloride

• Sodium chlorite

• Sodium chlorate

• Sodium perchlorate