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Chemistry > Laboratory Safety > Flashcards

Laboratory Safety Flashcards

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1
Q

Work with large or small containers?

A

Small.

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2
Q

When can you mix chemicals?

A

When your teacher tells you to.

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3
Q

How many times should you read chemical labels?

A

More than once.

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4
Q

What should you do with instructions before you begin?

A

Read through them all the way.

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5
Q

When should you use a tray?

A

Whenever your lab has one.

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6
Q

How should you move when handling chemicals?

A

Carefully and deliberately.

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7
Q

Do you add acid to water or water to acid?

A

Add concentrated sulfuric or phosphoric acid to water.

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8
Q

Where should you hold coin-top stoppers while pouring?

A

Between your fingers.

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9
Q

Where should you hold bottles?

A

With your hand over the labels.

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10
Q

How fast do you replace stoppers?

A

Immediately.

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11
Q

Where should you work with harmful volatile chemicals?

A

Under a hood.

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12
Q

How should you keep chemicals?

A

Pure and uncontaminated.

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13
Q

Who should you notify to clean up spills?

A

Your teacher.

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14
Q

Where should you put waste.

A

In the proper container.

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15
Q

Where should you heat volatile organics? Where should you not.

A

In a heating mantle or steam bath in a hood. Not over a Bunsen Burner.

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16
Q

What should you check for on the gas hose for before use?

A

Cracks.

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17
Q

Make sure the hose fits securely on the __

A

Gas valve and Bunsen burner fittings.

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18
Q

Where should you stand from the burner while lighting?

A

Stand back.

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19
Q

Should you turn on the gas before or after lighting a match?

A

After.

20
Q

What do you do if the flame sputters, flares, or goes out, or if you smell gas?

A

Turn off the gas.

21
Q

What should you always check glassware for?

A

Stars or cracks.

22
Q

Where should you clamp narrow-necked containers to?

A

The ring stand.

23
Q

How should you move test tubes back and forth through a flame while heating?

A

At and angle.

24
Q

Should you heat closed containers?

A

No.

25
Q

Where should you hold hot glassware?

A

In beaker tongs or hot mitts.

26
Q

Should you shake thermometers?

A

No.

27
Q

Use thermometers only in the __ they are suited for.

A

Range.

28
Q

How should you cool down a thermometer.

A

Lay down on a towel or wire screen away from edges of desks.

29
Q

Who should clean up broken thermometers?

A

Your teacher.

30
Q

What should you use to place glass tubing in a stopper or remove it?

A

An inserter or lubricate the tubing and wear leather gloves to protect your hands.

31
Q

What kind of clothing should you not wear for a lab?

A

Extremely loose clothing.

32
Q

What kind of clothing should you wear for a lab?

A

Sturdy and natural fabric. Older cloves covered with a lab apron. Long pants/skirt to cover legs.

33
Q

What kind of shoes should you wear for a lab?

A

Closed leather shoes.

34
Q

What should people with long hair do for a lab?

A

Tie up their long hair.

35
Q

What jewelry should be removed before a lab?

A

Rings and watches?

36
Q

What should you do with contact lenses during a lab?

A

Take them out.

37
Q

How should you protect your eyes during a lab?

A

Wear goggles with side shields.

38
Q

How should you protect your hands?

A

Wear appropriate gloves.

39
Q

Where should your personal belongings not be.

A

In the aisle.

40
Q

What should you use to help reach something?

A

A step stool.

41
Q

Where should makeup be kept?

A

Away.

42
Q

Are food and drinks allowed in the lab?

A

No.

43
Q

Where should you rinse chemicals from your hands and arms?

A

In the sink.

44
Q

What should you do before entering the safety shower?

A

Take off your clothes.

45
Q

How should you extinguish small fires?

A

Use a fire blanket to cover them.

46
Q

Who should use an extinguisher to put out large fires?

A

The teacher.

47
Q

Where should you put out clothing fires.

A

In the safety shower. (If not available - use fire blanket)

Chemistry (6 decks)

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