Chemistry G61B Exit Quiz

How many atoms are in the compound H₂O?

• 3

• 1

• 6

• 4

What is the total number of atoms in the compound Ca(NO₃)₂?

• 5

• 8

• 9

• 14

Calculate the total number of atoms in a molecule of H₂SO₄.

• 6

• 3

• 7

• 8

How many oxygen atoms are present in 3 CO₂ molecules?

• 3

• 6

• 9

• 12

What is the ionic charge of sodium (Na)?

• -2

• 0

• +1

• +3

What is the ionic charge of chloride (Cl)?

• 0

• +1

• -1

• -2

What is the chemical formula for sodium chloride?

• NaCl

• C6H12O6

• H2O

• CO2

What is the chemical formula for magnesium oxide?

• MgOH

• MgO

• Mg₂O

• Mg₂O₃

What type of molecular compound is H2O?

• Hydrogen peroxide

• Water

• Carbon dioxide

• Sodium chloride

What type of molecular compound is CH4?

• Hydrogen compound

• Ionic compound

• Covalent compound

• Metallic compound