Unit 2. Intro to Matter

This picture represents which of the following?

• element

• compound

This picture represents which of the following?

• element

• compound

Which of the following is a chemical compound?

• Co
•  CO₂
• Mg
• Al

Carbon is considered an element, while carbon dioxide is considered a compound. This is because carbon dioxide is ---

• a gas at room temperature.

• made of two different elements.

• given off by green plants.

• useful to human beings

Compounds are different than elements because compounds are ---

• combinations of two or more elements.

• not able to be broken down into parts.

• made from the same type of atoms.

• a pure substance; elements are not.

The smallest particle of any particular type of matter is known by which of the following terms?

• Element

• Chemical

• Atom

• Compound

Is sugar (C₁₂H₂₂O₁₁) an element or a compound?

• Element
• Compound

Is water an element or a compound?

• Element
• Compound

Is Iron (Fe) an element or a compound?

• Element
• Compound

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

• Elements

• Compounds

• Mixtures