Unit 1 Test Review

What is shown in this image?

• beaker

• graduated cylinder

• buret

• erlenmeyer flask

Safety goggles must be worn if you are heating a beaker filled with water

• true

• false

Which of the following is represented by the attached image?

• buret

• pipet

• beaker

• erlenmeyer flask

Which of the following would you want to use if you got chemicals in your eyes?

• eye wash station

• drench hose

• fire blanket

• fire extinguisher

Who is responsible for cleaning up broken glassware during a lab

• the student

• the teacher

• the custodian

• it's okay to just leave it there until school ends

What is a pipet used for?

• Heating a liquid

• Measuring the volume of a liquid

• Transferring a small amount of a liquid

• Holding a liquid until it is needed

0.000510 converted into scientific notation is:

• 51.0 x 10^-5

• 510 x 10^-6

• 5.10 x 10^4

• 5.10 x 10^-4

23,000,000 converted into scientific notation is:

• 0.23 x 10^8

• 2.3 x 10^7

• 2.3 x 10^-7

• 23 x 10^6

How many significant figures does the number 0.0052 contain?

• 1

• 2

• 3

• 4

How many significant figures does the number 250.0 contain?

• 1

• 2

• 3

• 4