Chemistry semester Test Review

Which of these sets of labels would correctly identify the diagrams in the pictures above?

• Picture 1: animal cell Picture 2: plant cell

• Picture 1: mixture Picture 2: solution

• Picture 1: compound Picture 2: element

• Picture 1: atom Picture 2: molecule

Which diagram represents an element?

• Diagram (a)

• Diagram (b)

• Diagram (c)

• None of the diagrams represent the parts of an element.

Which of the following represents a compound?

• Diagram (a)

• Diagram (b)

• Diagram (c)

• All of the diagrams represent the parts of a compound.

Which diagram represents a homogeneous mixture?

• Diagram (a)

• Diagram (b)

• Diagram (c)

• None of the diagrams represent the parts of a mixture.

What type of matter is shown in this particle diagram?

• Element

• Compound

• Mixture of Elements

• Mixture of Compounds

• Mixture of Elements and Compounds

What type of matter is shown in this particle diagram?

• Element

• Compound

• Mixture of Elements

• Mixture of Compounds

• Mixture of Elements and Compounds

How many sig. fig. are in the number below:
350.540

• 4
• 5
• 6
• 7

How many sig. fig. are in the number below:
0.0005

• 1
• 2
• 3
• 4

Which measurement contains 3 sig figs?

• 200 mL
• 20.0 mL
• 0.02 mL
• 0.020mL

Round 1047.78 to three sig figs

• 104
• 105
• 1050
• 1050.00