Elements, Molecules, Compounds

Which of the following is not a compound?

• HCl

• Cl₂

• NaCl

• CO₂

Which of the following represents an element?

• H₂O
• H₂
• NaCl
• CaCO₃

A molecule is

• two or more atoms bonded together
• one type of atom
• smaller than an atom 
• an element

How many atoms are there TOTAL in:
H₂SO₄

• 6
• 5
• 7
• 3

How many elements are in C₆H₁₂O₆?

• 1
• 2
• 3
• 4

(Element or Compound)
       C₂H₈O 

• Element
• Letters
• Numbers
• Compound

This picture represents which of the following?

• molecule

• compound

• mixture

This picture represents which of the following?

• molecule

• compound

• element

• Element
• Molecule
• Compound
• Mixture

What is the name of a single type of atom?

• cell
• proton
• element
• atom