What are two the two types of pure substances?

• elements

• compounds

• heterogenous mixtures

• homogenous mixtures

What are two the two types of mixtures?

• elements

• compounds

• heterogenous

• homogenous

What is the simplest kind of pure substance?

• Element

• Compound

• Homogenous Mixtures

• Heterogenous Mixtures

This is a water molecule. It is a ________.

• Element

• Compound

• Heterogenous Mixture

• Homogenous Mixture

Why kind of mixture is this?

• Heterogeneous

• Homogenous

• Element

• Compound

The center of an atom is called

• Nucleus

• Electron

• Element

Neutrons are neutral

• True

• False

Looking at the image, how many protons does Oxygen have

• 8

• 16

What type of substance is pictured?

• element

• compound

• mixture

• solution

Which is a pure substance?

• 
• 
• 
•