Spiral Review 3- Elements/ Compounds

Match the following

• pure substances

• two or more substances NOT chemically combined

• element

• a molecule made of at least two different elements in a fixed ratio

• mixture

• a group of two or more atoms bonded together

• molecule

• elements and compounds

• compound

• simplest form of matter

Ozone is a gas found in the atmosphere. Which question should be asked to determine if ozone is an elemental molecule?

• What is the color of the molecule?

• What is the shape of the molecule?

• What elements are present in the molecule?

• How many atoms are present in the molecule?

Which THREE diagrams contain compound molecules?

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Which model correctly shows a mixture that is made of an elemental molecule and a compound?

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A molecule is made up of ____ or more atoms.

• 1
• 2
• 3
• 4

Which diagram below shows a compound molecule?

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Which diagram below shows a mixture?

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In the diagrams provided, the circles of different colors represent the atoms of different elements. Which diagram represents a mixture?

• I

• II

• III

• IV

What is being shown in this image?

• Element

• Compound Molecules

• Elemental Molecule

• Diatomic molecules

What is being shown in this image?

• Single Atoms (Element)

• Compound Molecule

• Elemental molecule

• Mixture