1st semester final review #5: Ionic vs Molecular Compounds

What are shared in a covalent bond?

• ions

• Lewis structures

• electrons

How many atoms of fluorine are present in a molecule with this formula, CF₄?

• 1

• 2

• 4

• 5

Tags

NGSS.MS-PS1-1

The formula for carbon dioxide, CO₂, can represent

• one molecule of carbon dioxide

• the combination of 1 atom of carbon and 2 atoms of oxygen

• both a and b

Tags

NGSS.MS-PS1-1

According to the octet rule, a calcium atom has a tendency to

• lose one electron.

• lose two electrons.

• gain one electron.

• gain two electrons.

Tags

NGSS.HS-PS1-2

NGSS.HS-PS1-1

The chemical formula for an ionic compound represents one

• formula unit (a ratio)

• ion

• molecule

• cation

phosphorus trichloride

• KCl₃

• PCl₃

• K₃Cl

• P₃Cl

silicon dioxide

• SO₂
• NaO₂
• SiO₂
• SiO

Tags

NGSS.MS-PS1-1

SiCl₄

• silicon tetrachloride
• silicon quadchloride
• monosilicon tetrachloride
• silicon chloride

Tags

NGSS.MS-PS1-1

The chemical formula of sulfur hexabromide is

• SBr₆
• S₆Br
• S(VI)Br
• S6Br

Tags

NGSS.MS-PS1-1

The chemical formula of dinitrogen textroxide is

• Ni₂O₄
• NiO
• N₂O₄
• NiO₂

Tags

NGSS.MS-PS1-1