Chemistry Fall Semester Exam 2024

Which of the following are true for the compound CaCl₂? Select TWO correct answers.

• A. Its name is calcium chlorite.

• B. Its name is calcium chloride.

• C. It forms a metallic bond.

• D. It forms a covalent bond.

• E. It forms an ionic bond.

Tags

NGSS.MS-PS1-1

Which of the following are compounds that contain a covalent bond? Select TWO correct answers.

• A) CaCl₂

• B) Na₂

• C) NaCl

• D) SO₂

• E) CO

Tags

NGSS.MS-PS1-1

What is the chemical formula for aluminum sulfate?

• AlS

• AlSO₄

• Al₂(SO₄)₃

• Al₃(SO₄)₂

Tags

NGSS.MS-PS1-1

Ammonia is a very commonly used covalent compound. It's scientific name is nitrogen trihydride. What is the chemical formula for ammonia?

• HN4

• NH3

• H3N

• NH4

Tags

NGSS.MS-PS1-1

What is the chemical formula for the carbon tetrachloride?

• CCl3

• CCl4

• C3Cl

• C4Cl

Tags

NGSS.MS-PS1-1

What is the name for the compound Na₃PO₄?

• Sodium phosphorus

• Sodium phosphide

• Sodium phosphite

• Sodium phosphate

What is the formula for sodium fluoride?

• NaF

• Na2F

• NaF2

• Na2F2

Tags

NGSS.MS-PS1-1

What is the formula for iron (II) oxide?

• Fe₂O₂

• Fe₂O

• FeO

• FeO₂

Tags

NGSS.MS-PS1-1

What is the formula for copper (I) oxide?

• Cu₂O₃

• Cu₂O

• CuO₂

• CuO

Tags

NGSS.MS-PS1-1

Which of the following is the common name for NH₃?

• water

• ammonia

• nitric acid

• methane

Tags

NGSS.MS-PS1-1