1. Molecules are made up of more than one _______.

2. Compounds are molecules that are made up of more than one _______.

3. What is the common name for the compound H2O?

4. How are molecules held together?

5. How many carbon atoms are in the molecule CO2?

6. Bonds between atoms are generally formed by what particles?

7. What is the most common element in the human body?

8. What type of chemical bonds share electrons between atoms?

9. What type of chemical bond is formed when one atom donates an electron to another atom?

10. What element is needed to form an organic compound?