Chem Final Review: Unit 4-6

Look at the periodic table. What should be the charge on the ion formed by calcium?

• +1

• +2

• -1

• -2

cations are formed when a neutral element ___________ valance electrons giving the atom an overall positive charge because there are more protons than electrons.

• loses

• gains

Name the following ionic compound: LiNO₃

• lithium nitrate
• lithium III nitrate
• lithium nitride
• lithium oxide

Name the following ionic compound: BeCl₂

• beryllium chlorine
• beryllium II chloride
• beryllium chloride
• beryllium dichloride

Potassium and Sulfur create...

• KS

• KS₂

• K₂S

• K₂S₂

The chemical formula of Iron (III) and bromine is

• FeBr

• Fe(III)Br

• FeBr₃

• Fe₂Br₃

Name CCl₄

• carbon carbon tetraiodide
• carbon tetrachloride
• monocarbon tetrachloride
• water

Name CO₂

• carbon dioxide
• carbon monoxide
• carbon oxide
• monocarbon dioxide

What is the correct Lewis Dot Structure for ammonia NH3

• 
• 
• 
• 

Which of the following is the correct Lewis dot structure for the molecule fluorine (F₂)?

• A
• B
• C
• D