2nd Semester Chemistry Final Exam

Atoms form bonds:

• To become more stable
• To become neutral
• To be happy
• To gain potential energy

What is the correct formula for calcium oxide?

• Ca₂O₂
• Ca₂O
• CaO
• CaO₂

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

In covalent bonds, atoms...

• share a pair of electrons
• share an electron
• transfer electrons
• have an electron sea

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What is the name of the following compound: AlBr₃?

• Aluminum bromine
• Aluminum bromate
• Aluminum bromide
• Aluminum (III) bromide

Which type of atoms tend to form ionic bonds with each other?

• Metals only
• Metals and nonmetals
• Nonmetals only
• Noble Gases only

Which of the following is not a property or characteristic of ionic bonds?

• High melting and boiling points
• Brittleness
• Non-Conductive in solid state
• Low melting points

Tags

NGSS.HS-PS1-1

What's another name for an ionic compound?

• Salt
• Molecule
• Metal

What is the name of the following polyatomic ion: OH^-

• hydroxide
• peroxide
• chlorate
• water

The roman number in "Copper (II) Sulfide" represents what?

• The charge of Copper
• The charge of Sulfur
• The number of Copper atoms in the formula
• The number of Sulfur in the formula

What is the name of NH₄⁺?

• Ammonium
• Ammonia
• Nitrate
• Nitrite