chem lab

Question 1

refers to any potential source of damage or harm

Answer 1

Hazard

Question 2

refers to the probability that a hazard can cause harm

Answer 2

Risk

Question 3

Uses pictograms as warning signs

Answer 3

GHS

Question 4

GHS

Answer 4

Globally Harmonized System

Question 5

High risk -Low number

Answer 5

Ghs

Question 6

Shown as a “diamond

Answer 6

NFPA

Question 7

NFPA

Answer 7

National Fire Protection Association

Question 8

High risk- High number

Answer 8

NFPA

Question 9

a highly reactive substance that causes obvious damage to tissues by chemical chemical action

Answer 9

Corrosive

Question 10

a substance that easily catches fire and has a flash point of 23-60 C; a liquid burns at normal temperatures

Answer 10

Flammable

Question 11

Flammable flash point

Answer 11

23-60 C

Question 12

the lowest temperature at which a substance (petroleum) will form vapor in the air that will “flash” on exposure on an open time

Answer 12

Flash point

Question 13

liquid needs heat before it ignites; ex.: paper wood

Answer 13

combustible

Question 14

substance capable of causing cancer; ex.: cigarette

Answer 14

carcinogen

Question 15

rule of acid

Answer 15

acid to water

Question 16

a glass container with a pouring lip and used to hold, mix, or heat substances

Answer 16

beaker

Question 17

used to measure a precise volume of liquid

Answer 17

graduated cylinder

Question 18

to hold/mix liquids; “titration flask”

Answer 18

Erienmeyer Flask-

Question 19

to hold a precise volume of liquid; for a precise standard solutions preparation

Answer 19

volumetric flask

Question 20

used to hold or clamp laboratory glassware and other equipment in place so it does not fall down or come apart

Answer 20

ring stand

Question 21

for delivering known volumes of liquid, especially in titrations; pour liquid by “drop by drop” rule

Answer 21

burette

Question 22

measures out precise small quantities at 10 mL; dispense with rubber aspirators

Answer 22

pipette

Question 23

a thin glass or plastic tube used to eject or suck in a small amount of fluid

Answer 23

dropper

Question 24

to hold/heat small amounts; has no graduation marks

Answer 24

test tube

Question 25

used to transfer liquids or fine grained materials into containers with small openings

Answer 25

funnel

Question 26

red-red litmus paper

Answer 26

acid

Question 27

red- blue

Answer 27

base

Question 28

blue- red

Answer 28

acid

Question 29

blue- blue

Answer 29

base

Question 30

increases of acid

Answer 30

acidosis

Question 31

increase of basic

Answer 31

alkalinosis

Question 32

proton donor

Answer 32

acid

Question 33

proton acceptor

Answer 33

basic/base

Question 34

buffers system that work in human body

Answer 34

carbonate buffer system
phosphate buffer system
protein