PreAP Chem Unit 1

When in the laboratory you should wear

closed-toed shoes

keep your hair, clothing, and other ____ materials away from the flame

combustible

Disturbing other students while they are working in the laboratory is

dangerous

Helping to clean up the laboratory or classroom is the job of

each student

In case of fire in the laboratory, notify the teacher at once and then prepare to

evacuate the building

To prevent accidents during laboratory activities , you should

follow directions

Any activity that involves poisonous vapors must be carried out in a(n) __ hood.

fume

To be able to put out a fire safely, you should know

how to use extinguisher, where the extinguisher is located, how to use a fire blanket

Carefully follow all __, both written and oral.

instructions

When you use the laboratory, you should give the procedure all of your

interest, attention, and effort

When you work in the laboratory long hair must be

kept out of the way

All floors and aisle should be kept clear of

lab equipment and chemicals

avoid apparel that presents safety hazards such as ______ garments and _____ jewelry

loose, dangling

When heating substances in a test tube, be sure the open end points toward

no other person

Chemicals, small parts, and stirring rods are not to be

put in your mouth

Always read and double check the label on a(n) __ bottle before removing anything from it, and never __ unused material to the bottle.

reagent, return

The most important thing in laboratory experiments is

safety

If you are hurt (cut, burned, etc.) tell the

teacher at once

Never heat a test tube

that is closed

To put out a fire in a person's hair or clothes, use

the fire blanket

If you see a fire in an apparatus, or a burning liquid, it is best to put it out with

the fire extinguisher

Laboratory aprons are for

the protection of you and your clothing

If you think there is something wrong with a piece of equipment, stop, turn it off and tell

the teacher

Never __ any substance unless you are specifically instructed to do so by your teacher.

touch

When smelling a liquid

waft it toward you

The correct way to move around the laboratory is to

walk

If acid gets on your skin or clothes, wash at once with

water

You must wear your goggles in the laboratory

when instructed to do so

Before you touch an electric plug, switch, or outlet

your hands should be dry

What color on the NFPA diamond represents health?

Blue

What is the first thing you should do to with a small spill?

Contain the spill with absorbent or paper towels

What is the responsibility of the professor or Principal Investigator?

Ensure that all safety equipment is available for use and working properly. Conduct periodic inspections of laboratories that use chemicals. Conduct periodic safety training of research staff.

What is the minimum personal protective equipment that must be used when handling chemicals in a laboratory?

Safety glasses, Lab coat, and Gloves

What should you immediately do if you splatter a hazardous chemical on you?

Use the Emergency Shower to promptly wash off the chemical

Which of the following would protect you from chemicals that can become airborne when used?

Use the chemical in a fume hood Wear a respirator when working with the chemical Ensure there is plenty of ventilation in the laboratory

What information can be found on the Material Safety Data Sheet (MSDS)?

a. The hazardous ingredients of the chemical. b. The hazardous characteristics of the chemical. c. Exposure control for the chemical.

If you are directed to mix an acid and water, always be sure to add the __ to the __, never the reverse.

acid, water

Playing in the laboratory or bothering another person is

always against the rules

Wear safety goggles and a lab __ at all times.

apron

If you are not sure what to do

ask the teacher

Any spill on the floor can cause an accident. Always clean it up

at once

If you break a piece of glassware or other equipment, tell the teacher

at once

If you see something in the classroom or laboratory that is dangerous, tell the teacher

at once

Make sure equipment is clean

before and after you use it

You should prepare for each laboratory activity by reading all the instructions

before you start

What would be an acute health effect?

burns and blisters on the skin vomiting and nausea

In the event of an emergency what number should you call?

911

When transferring liquid nitrogen to a transport container, you should be wearing the follow.

A face shield and safety glasses Insulated gloves A lab coat

The following statements is true about eyewash stations.

Always keep access to the eyewash station open in the event of an accident Routinely check the eyewash station for operability Hold eyes open to ensure they are cleansed of the chemical

Where are chemicals to be stored with a flammability of 3 or 4?

In an acid storage cabinet

Exposure to a gas, vapors or dust in the air would be an example of which of the following?

Inhalation

Regarding fire safety, you should always do the following.

Know where the fire exits are located in advanced in the event of a fire. Ensure that when you exit the lab that everybody is out If you are not comfortable using a fire extinguisher, just exit the lab

How would you protect yourself from accidentally ingesting chemicals?

Not eating or drinking in the laboratory Do not touch your face with your gloved hand Remove gloves and wash hands prior to leaving the lab

What should you check for before using a fume hood?

Operability of the fume hood That it was certified for use within the last year Sash height

What does white represent on the NFPA diamond?

Special Hazards

Who is required to provide MSDS's upon request?

The employer The manufacturer or distributor