Chemistry Fall Final Review

Multiply 2.3 x 10^2 and 5.4 x 10^4.

• 1.242 x 10^7
• 1.242 x 10^6
• 1.242 x 10^-6
• 1.242 x 10^-7

The study of chemical processes in living organisms is called

• pure chemistry.
• biochemistry.
• inorganic chemistry.
• living thing chemistry.

Tags

NGSS.HS-LS1-6

NGSS.HS-LS1-7

NGSS.HS-LS2-3

NGSS.HS-LS2-5

A sample of water's volume is measured to be 9 mL. The true volume is 8.5 mL. What's the percent error?

• About 5.88%
• About 5.56%
• About 50%
• About 8.33%

Divide 8.9 x 10^-3 and 1.0 x 10^-2

• 8.9 x 10^-1
• 8.9 x 10^-2
• 8.9 x 10^1
• 8.9 x 10^2

Express 5.6 x 10^-2 as a "normal" number.

• 0.056
• 0.56
• 0.0056
• 560

The closeness to the true value of a measured object is

• accuracy
• precision
• significant figure
• weight

The kelvin is the SI base unit for

• mass
• temperature
• time
• weight

The diameter of a carbon atom is 0.000 000 000 154 m. What is this number expressed in scientific notation?

• 1.54 x 10^12 m
• 1.54 x 10^-12 m
• 1.54 x 10^10 m
• 1.54 x 10^-10 m

Which of the following measurements contains 2 significant figures?

• 0.00400 L
• 0.00404 L
• 0.00044 L
• 0.00440 L

A conversion factor that shows the relationship between grams and kilograms is

• 1000 g / 1 kg
• / 1000
• x 1000
• 1 g / 1000 kg