Chemistry; Section 1 Chapter 2

What is the SI unit for mass?

• kg

• mol

• g

• kelvin

What is the SI unit for length?

• meter

• kg

• kelvin

• mol

What is the SI unit for temperature?

• kelvin

• celsius

• fahrenheit

• joule

Written in scientific notation, the measurement 0.000 065 cm is...

• 6.5 x 10⁵ cm

• 6.5 x 10⁴ cm

• 6.5 x 10^-5 cm

• 6.5 x 10^-4 cm

Written in scientific notation, the measurement 78 000 cm is...

• 7.8 x 10⁴ cm

• 7.8 x 10⁵ cm

• 7.8 x 10^-4 cm

• 7.8 x 10^-5 cm

Determine the average mass of the following data set: 48.0 g, 53.0 g, 59.0 g, 62.0 g

• 55.5 g

• 55.75 g

• 56.0 g

• 56.25 g

Which of the following units has been named for a person?

• mole (mol)

• kelvin (K)

• milliliter (mL)

• megameter (Mm)

Which of these terms best describes the following statement? “A solution of the unknown compound turned litmus paper blue.”

• hypothesis
• model 
• quantitative observation
• qualitative observation

The SI base units for time and temperature are

• hour and degree Celsius.
• second and degree Celsius.
• hour and kelvin.
• second and kelvin.

Which of these shows SI unit prefixes arranged in order from smallest to largest?

• centi, milli, kilo
• milli, centi, kilo 
• kilo, milli, centi 
• kilo, centi, milli