Ionic vs Molecular Compounds

What does a subscript number in a chemical formula mean?

• It represents the name of the first element

• It represents the number of atoms of an element

• It represents the number of molecules

• It represents the name of the compound

What is a molecule?

• a cluster of atoms together

• a small substance

• it's a compound

Tags

NGSS.MS-PS1-1

A diatomic molecule is made of two atoms of the same element.

• True

• False

Tags

NGSS.MS-PS1-1

Ionic compounds are made of...

• two or more non-metals

• two or more metals

• a metal and a non-metal

• salt

Tags

NGSS.MS-PS1-1

Molecular compounds are made of...

• two or more non-metals

• two or more metals

• a metal and a non-metal

• nothing

Tags

NGSS.MS-PS1-1

Which of the following properties DOES NOT represent an ionic compound?

• high solubility

• high melting point

• conducts electricity

• solid, liquid OR gas at room temperature

Which of the following is a property of a molecular compound?

• does not dissolve

• high conductivity

• high melting and boiling points

• ionic bonds

Which of the following is a property of an ionic compound?

• covalent bonds

• low melting point

• solid at room temperature

• insoluble

Name the compound as ionic or molecular:

NaCl

• ionic

• molecular

Name the compound as ionic or molecular:

glucose: C₆H₁₂O₆

• ionic

• molecular

Tags

NGSS.MS-PS1-1