What is the rule regarding food consumption in the lab?

• Food is allowed if stored properly.

• No food consumption is allowed at any time.

• Food is allowed if the teacher permits.

• Food is allowed only during breaks.

What should you do if a chemical spills on you?

• Wait until the end of the lab to clean it.

• Ignore it if it doesn't hurt.

• Wash it immediately with cold water.

• Wipe it off with a paper towel.

What type of fire extinguisher is available in the lab?

• Water-based

• Foam

• CO2

• ABC type

When diluting an acid, what is the correct procedure?

• Mix both simultaneously.

• Add water to the acid.

• It doesn't matter which is added first.

• Add acid to the water.

What is the purpose of the collar on a Bunsen burner?

• To turn off the burner.

• To adjust the oxygen mix.

• To regulate the gas flow.

• To ignite the flame.

Which balance is more accurate for precise measurements?

• Triple beam balance

• Electronic balance

• Pan balance

• Spring balance

What is a beaker primarily used for?

• Measuring temperature

• Heating solids

• Holding and mixing chemicals

• Accurate measurements

What is the correct way to measure liquid in a graduated cylinder?

• From the bottom of the liquid

• From the top of the liquid

• From any angle

• From the same plane as the top of the liquid

What is a volumetric flask used for?

• Storing solids

• Making precise measurements of liquids

• Holding waste chemicals

• Boiling liquids

What should you do before making measurements on a scale?

• Tare the equipment

• Clean the scale

• Turn off the scale

• Calibrate the scale