Unit 1--Identifying an unknown substance

Question 1

Flammable

Answer 1

can catch fire

Question 2

toxic

Answer 2

can harm living organisms

Question 3

Reactivity

Answer 3

chemical reaction–change in waste, production of gas, color change

Question 4

Chemical properties

Answer 4

change in temperature, removal of waste, production of gas, color change

Question 5

physical properties

Answer 5

color, texture, hard/soft, density, mass, volume,changes in state of matter

Question 6

D=

Answer 6

M/V

Question 7

Determine the density:
Mass:24
Volume: 6

Answer 7

Density:4

Question 8

Corrosive

Answer 8

eats away matel

Question 9

Corrosive is a pH reading of?

Answer 9

below 3 and above 12

Question 10

Meniscus

Answer 10

look at the middle bottom for reading

Question 11

Liquids with lower density than water go ____ when put in water

Answer 11

down

Question 12

Liquids with higher density than water go ____ when put in water

Answer 12

up

Question 13

what is the first step the HazMat Team do to deal with an unknown substance

Answer 13

Observe from distance

Question 14

Mixture

Answer 14

NOT miscible because it can separate

Question 15

What does miscibility in water mean?

Answer 15

Two chemicals mix together, don’t seperate