Chem Unit 1 Review

When you finish working with chemicals, biological specimens, etc., always

• treat your hands with skin lotion.

• wash your hands thoroughly with soap and water.

• wipe your hands on a towel.

• wipe your hands on your clothes.

Hot glass looks the same as cold glass.

• True

• False

Return all unused chemicals to their original containers.

• True

• False

Approved eye protection devices (goggles) are worn in the laboratory

• to avoid eye strain.

• to improve your vision.

• only if you don't have corrective glasses.

• any time chemicals, heat, or glassware are used.

If a laboratory fire erupts, immediately

• notify your instructor.

• run for the fire extinguisher.

• throw water on the fire.

• open the windows.

The following footwear is best in the laboratory

• sandals.

• open-toed shoes.

• closed-toed shoes.

• shoes appropriate for the weather.

In a laboratory, which of the following should not be worn?

• loose clothing.

• dangling jewelry.

• sandals.

• all of the above

What is the volume of Object X?

• 10.0 cm³
• 15.0 cm³
• 20.0 cm³
• 25.0 cm³

Measure to the nearest milliliter.

• 73 mL
• 73.1 mL
• 76 mL
• 76.1 mL

What is measured with a graduated cylinder?

• Passage of time
• Distance from one thing to another
• Weight of an object
• Volume of liquid