Chemistry Semester 1 Exam 23-24

Which of the following numbers has three significant figures?

• 1014 miles

• 101 feet

• 1000 yards

• all of the choices

How many significant figures does the following number have: 0.002040

• 6

• 4

• 3

• 2

Round 0.010229 to four significant figures

• 1022

• 1023

• 0.01023

• 0.01022

How many significant figures does the measurement in 10.0 grams have?

• 1

• infinite

• 3

• 2

Calculate 5.50 cm + 5.5 cm and give your answer with the correct number of significant figures.

• 11 cm

• 11.0 cm

• 11.00 cm

• 11.000 cm

Calculate 7.987 m - 0.54 m and give your answer with the correct number of significant figures.

• 7.45 m

• 7.447 m

• 7.4 m

• 7.5 m

Calculate 1.23 m x 0.89 m and give your answer with the correct number of significant figures.

• 1.0 m²

• 1.1 m²

• 1.0947 m²

• 1.095 m²

Calculate 12.47 m ÷ 3.2 s and give your answer with the correct number of significant figures.

• 4 m/s

• 3.9 m/s

• 3.90 m/s

• 3.897 m/s

Volume?

• 63.5 mL

• 63 mL

• 63.55 mL

• 6 mL

What is the length of the object in centimeters?

• 3.40 cm

• 4.3 cm

• 3.5 cm

• 1 ¹/₄ inches