Acids and Bases

What is the chemical formula for sodium hydroxide?

• KOH

• NaCl

• Ca(OH)2

• NaOH

Identify the charge of a calcium ion.

• +2

• +1

• 0

• -1

How many protons are present in a magnesium ion?

• 12

• 14

• 8

• 10

Write the chemical formula for ammonium sulfate.

• (NH₄)₂SO₄

• (NH₄)₂S

• (NH₄)₃SO₄

• NH₄SO₄

Tags

NGSS.MS-PS1-1

What is the mass number of an oxygen atom?

• 14

• 18

• 16

• 12

What is the charge of a nitrate ion?

• 0

• -1

• +1

• -2

List the number of electrons in a potassium ion.

• 18

• 20

• 17

• 19

What is the chemical formula for copper(II) oxide?

• CuO2

• Cu3O

• CuO

• Cu2O

Tags

NGSS.MS-PS1-1

What is the chemical formula for sulfuric acid?

• HCl

• H₂SO₄

• HNO₃

• H₂CO₃

Tags

NGSS.MS-PS1-5

What is the atomic number of carbon?

• 6

• 8

• 12

• 14