Chem I Unit 3 Review

The student found a length measurement to be 0.06748 cm. What is the measurement rounded to three significant digits?  

• 0.068 cm
• 0.07 cm
• 0.0675 cm
• 0.0674 cm

40 cm = ______ mm
( 1 cm = 10 mm)

• 4000
• 40
• 400
• None of the Above

Tags

CCSS.6.RP.A.3D

18,000 ng = _______ g

• 0.000018000

• 18,000,000

• 0.018000

Convert 17 m to cm:
(1 m = 100 cm)

• 0.17 cm
• 0.017 cm
• 1,700 cm
• 170 cm

1000 grams = _____ kilograms

• 0.0001
• 1,000,000
• 10
• 1

42 L = ___mL

• 4,200
• .0042
• 4.20
• 42,000

How would you write 4.3756 x 10⁴ in standard form?

• 437,560,000
• 0.00043756
• 43,756
• 4,3756

Tags

CCSS.8.EE.A.3

How would you write 0.0005 in scientific notation?

• 50 x 10^-5

• 5 x 10^-4

• 5 x 10³

• .5 x 10³

Which of the following is correct scientific notation?

• 20.35 x 10⁴
• .2035 x 10⁴
• 2035 ⁴
• 2.035 x10⁴

Express the following in scientific notation:
.000457

• 457 x 10⁶
• 457 x 10^-6
• 4.57 x10⁴
• 4.57 x 10^-4