Unit 2 Review

• Element
• Compound
• Mixture

• Element
• Compound
• Mixture

• Element
• Compound
• Mixture

• Element
• Compound
• Mixture

• Element
• Compound
• Mixture

A pure substance that cannot be broken down into any other substance.

• Elements

• Compounds

• Mixtures

A ___________ is a combination of many different elements not chemically combined.

• Element

• Compound

• Mixture

Which of the following is a way in which elements and compounds are similar?

• Elements and compounds are pure substances.
• Elements and compounds are both made up of different kinds of atoms.
• Elements and compounds can both be broken down by physical means.
• Elements and compounds are listed on the periodic table.

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

This diagram represents a _____.

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