unit 2 type of matter +change

A pure substance...

• is an element or a compound
• is an element or a mixture
• is a compound or a mixture
• is a mixture

A substance made of only one type of atom is called —

• an element
• a mixture
• a compound
• a salt

Table salt, or sodium chloride has the chemical formula NaCl. How is sodium chloride classified?

• as an element

• . as a compound

• as a mixture

• as a liquid

Brass is a metal that is bright red and gold. It is formed by combining, not chemically, two elements, zinc and copper. Based on the information, how would brass be classified?

• an element

• compound

• mixture

• suspension

Classify the picture with the correct label.

• Element
• Compound
• Mixture of Elements
• Mixture of Compounds

This picture represents which of the following?

• A single element

• Mixture of molecules

• mixture of atoms

• mixture of compounds

What does this illustrate

• Elements

• Compunds

• Mixture of Elements and Compunds

• Mixture of Compounds

Which of the following is an element?

• Sugar
• Salt
• Water
• Oxygen

This diagram represents a _____.

• pure substance that is a compound
• mixture of elements
• pure substance that is an element
• mixture of compounds

This diagram represents a _____.

• Element

• Compound

• Mixture of compound and element

• Mixture of two elements