Honors Chemistry Midterm Review

Match the following pieces of lab equipment to the correct term

• Erlenmeyer flask

• 
• graduated cylinder

• 
• Bunsen burner

• 
• test tube

• 
• balance

• 

Of the following options, beaker, Erlenmeyer flask, graduated cylinder, test tube, which would give the most accurate volume measurement and why?

• Beaker, because it is easy to pour

• Graduated cylinder, because it has precise markings

• Erlenmeyer flask, because it is stable

• Test tube, because it is small

What should you do with chemicals at the end of a lab experiment?

• Pour them down the sink

• Dispose of them according to your teacher's instructions

• Leave them on the lab bench

• Mix them together in a beaker

Tags

NGSS.HS-ETS1-3

The proper technique that should be used for smelling chemicals is to:

• Directly inhale the fumes

• Waft the fumes towards your nose with your hand

• Smell the container directly

• Use a fan to blow the fumes towards you

What should you do if you or your partner break a piece of glassware during an experiment?

• Ignore it and continue working

• Clean it up with your hands

• Notify the teacher and follow their instructions

• Sweep it under the table

What should you do if a chemical gets in your eyes?

• Rub your eyes vigorously

• Rinse your eyes with water immediately

• Close your eyes and wait for help

• Use a tissue to wipe your eyes

True/False: The last thing you should do before leaving the lab is wash your hands.

• True

• False

Name 4 precautions that you should follow when using a Bunsen burner:

• Tie back long hair, wear safety goggles, keep flammable materials away, never leave it unattended

• Wear sandals, keep flammable materials close, leave it unattended, use it near open windows

• Wear gloves, use it near paper, leave it unattended, keep it on high flame

• Use it near curtains, wear loose clothing, keep flammable materials close, leave it unattended

Measure each of the three lines with the provided ruler. Record your answer to the correct precision of the ruler.

• 3 cm, 2 cm, 4 cm

• 3.7 cm, 2.5 cm, 4.1 cm

• 3.7 cm, 2.50 cm, 4.10 cm

• 3.75 cm, 2.5 cm, 4.1 cm

How many significant figures are in the measurement 1200 kg?

• 1

• 2

• 3

• 4