Chemistry Review Term 1

Name the element N.

• Nitrogen

• Neon

• Potassium

• Nitrite

What is the name of N₂O₃?

• Dinitrogen pentaoxide

• dinitrogen trioxide

• trinitrogen dioxide

• nitrogen oxide

The combination of metal and non-metal element forms a/ an_____ compound.

• covalent

• ionic

KCl + AgNO₃ -> KNO₃ + AgCl is what type of reaction?

• single replacement

• decomposition

• synthesis

• double replacement

Reactions that involve the burning of compounds like 2C₈H₁₈ + 25O₂ → 16CO₂ + 18H₂O is..?

• decomposition

• synthesis

• combustion

• single replacement

How many valence electrons are in an atom of phosphorus (P)?

• 5

• 4

• 3

• 2

What is the correct formula for Sodium Oxide?

• NaO₂

• NaO

• Na₂O₂

• Na₂O

Name this formula:

Al₂O₃

• Aluminum Oxygen

• Antimony Oxide

• Aluminum Oxide

• Oxygen Allumide

Which type of reaction is:

NiCl₂ → Ni + Cl₂

• single replacement

• double replacement

• decomposition

• synthesis

Which is classified as a polyatomic ion in Al(OH)_{3 ?}

• Aluminum

• oxygen

• hydrogen

• hydroxide