Molecular Chemistry

Covalent Compounds HAVE a positive (+) or negative (-) charge

• True

• False

• huh?

• What was that now?

CO₂

• Ionic
• Covalent
• Polyatomic Ion 
• Metallic 

NaCl

• Ionic
• Covalent
• Metallic
• Polyatomic Ion 

Tags

NGSS.HS-PS1-3

MgCl₂

• Ionic
• Covalent
• Polyatomic Ion
• Metallic 

Tags

NGSS.HS-PS1-3

Ionic compounds are bonds between

• Metals and Metals
• Metals and Nonmetals
• Nonmetals and Nonmetals
• None of the above

What is the representative unit in a molecular compound?

• a molecule

• an ion

• a formula unit

• shared electrons

The molecular formula PCl₅ indicates that ____.

• the molecule contains one phosphorus atom and five chlorine atoms

• the octet rule is obeyed by this compound

• some of the bonds are double bonds

• some of the bonds are ionic

What information does a molecular formula provide?

• the number and kind of atoms that are bonded by the transfer of electrons

• the simplest whole-number ratio of atoms that are bonded by the transfer of electrons

• information about a molecule's structure

• the number and kind of atoms present in a molecule