First Semester Chemistry Final Exam Review

How many significant figures does the following measurement have: 0.002040 m?

• 6

• 4

• 3

• 2

Round 0.010229 min to four sig figs

• 1022 min

• 1023 min

• 0.01023 min

• 0.01022 min

What is the measurement 1042 Liters rounded to 2 significant figures? 

• 1040 L
• 1.1 x 10³ L
• 1.0 x 10³ L
• 1050 L

What is 98.907 g rounded to 1 significant figure?

• 98.9 g

• 90 g

• 100 g

• 98.91 g

Solve and round to the correct number of significant figures:

12.5-mL + 20.05-mL + 2.69-mL

• 35-mL

• 35.2-mL

• 35.24-mL

• 35.240-mL

Solve and round to the correct number of significant figures:

0.00040-m × 0.0021-m

• 0.00000084-m²

• 0.0000084-m²

• 8 x 10^-7-m²

• 8.45 x 10^-7-m²

Solve and round to the correct number of significant figures:

1.3562-mL / 14.32 g

• 0.09-mL/g

• 0.097-mL/g

• 0.0973-mL/g

• 0.09471-mL/g

How is volume derived?

• length X width

• force X length

• length X width X height

• mass/volume

What is the unit abbreviation for density?

• g/cm³

• g/m³

• kg/cm³

• kg/m³

Which prefix means 1 thousand times bigger?

• deka-
• centi-
• giga-
• kilo-