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## Question 1

According to the metric system, 1 L = ________ mL.
A) 1 x 101
B) 1 x 102
C) 1 x 103
D) 1 x 106
E) none of the above

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## Question 2

According to the metric system, 1 Tm = ________ m.
A) 1 x 1012
B) 1 x 109
C) 1 x 106
D) 1 x 103
E) none of the above

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## Question 3

A sample of 10K gold contains the following: 10.0 g gold, 4.0 g silver, 5.0g copper, and 5.0 g nickel. What is the percent gold in the sample?
A) 10%
B) 14%
C) 42%
D) 58%
E) 71%

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## Question 4

Add 5.0 x 104 to 2.0 x 103 and express the answer in scientific notation.
A) 1.0 x 103
B) 2.5 x 103
C) 2.5 x 104
D) 5.2 x 103
E) 5.2 x 104

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## Question 5

A lithium atom has a radius of 0.000 000 015 2 cm. Express the atomic radius in scientific notation.
A) 1.52 x 10-9 cm
B) 1.52 x 10-8 cm
C) 1.52 x 10-7 cm
D) 1.52 x 107 cm
E) 1.52 x 108 cm

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## Question 6

Multiply 7.99 x 10-5 times 5.66 x 10-7 and express the answer in scientific notation.
A) 4.52 x 10-34
B) 4.52 x 10-13
C) 4.52 x 10-12
D) 4.52 x 10-11
E) 4.52 x 1035

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