Unit 1 of Chemistry

Question 1

What is a chemical

Answer 1

Substance made of matter that has mass and takes up space

Question 2

Mixture

Answer 2

Several Ingredients

Question 2

Pure

Answer 2

1 ingredient

Question 3

Why are chemicals not an energy or force

Answer 3

Mass of non-matter isn’t measurable

Question 4

Chemistry

Answer 4

Study of matter and its properties or characteristics

Question 5

Toxic

Answer 5

Poisonous, harmful, unsafe

Question 6

Corrosive

Answer 6

Eroding, damages skin, chemical burns

Question 7

Flammable

Answer 7

Burnable, combustible, ignitable

Question 8

Biohazard

Answer 8

Health hazard, environmental hazard, viral toxin

Question 9

Radioactive

Answer 9

Emitting radiation, hot, contaminated

Question 10

Personal Protection Equipment (PPE) in Chem Lab

Answer 10

Goggles, closed-toe shoes, long sleeves, pants, hair net/tie, face mask, gloves, and face Sheild

Question 11

Safety Equipment

Answer 11

Utility Sink, Fire Blanket, Fire Extinguisher, Safety Shower, Eye wash, Fume Hood, and Gas Shutoff

Question 12

What are Hazard Identification Labels used for?

Answer 12

Helps firefighters to identify potential hazards in a facility

Question 13

Hazard Identification Labels

Answer 13

-Color Coded
Blue - hazardous to person or environment
Red- Flammability
Yellow - Reactivity
White - other info

Question 14

Hazard Scale

Answer 14

None(0)
Slight(1)
Moderate(2)
Hazardous(3)
Extreme Danger(4)

Question 15

How to measure with precision

Answer 15

Check units, read bottom of meniscus when measuring volume, estimate digit between graduations

Question 16

3 Common Risk Factors

Answer 16

1. Inhalation
2. Ingestion
3. Skin Absorption

Question 17

Density

Answer 17

• Amount of matter per space
• Measured in */cm3 or g/mL

Question 18

Density of Water

Answer 18

1.0 g/mL or 1.0 g/cm3

Question 19

Accuracy

Answer 19

Difference between the actual measurement and given value in problem ; closeness of measurements to an accepted value

Question 20

Precision

Answer 20

The repeatability or closeness of measurements to an accepted value ; repeatability of a measurement

Question 21

Inert

Answer 21

Non-reactive

Question 22

Beaker

Answer 22

Used to mix and heat substances

Question 23

Stir Rod

Answer 23

Stir combinations of liquids or used in pouring liquids

Question 24

Erlenmeyer Flask

Answer 24

Used for mixing and heating substances

Question 25

Volumetric Flask

Answer 25

Used to precisely make solutions

Question 26

Burette

Answer 26

Used to transport measured volume of liquid

Question 27

Pipette

Answer 27

Used to measure volumes of liquids with accuracy and precision

Question 28

Graduated Cylinder

Answer 28

Used to measure volumes of liquid accurately

Question 29

Bunsen Burner

Answer 29

Connected to gas source creating single flame

Question 30

Electronic Balance

Answer 30

Used to determine mass of object or substance

Question 31

Florence Flask

Answer 31

Used for even heating

Question 32

Evaporating Disk

Answer 32

Container for small amount of liquids to be evaporated

Question 33

Funnel

Answer 33

Holds filter paper and can be used for pouring

Question 34

Well Plate

Answer 34

Performing and observing many small reactions at same time

Question 35

Watch Glass

Answer 35

Used to cover beakers and evaporate small amounts of liquids

Question 35

Test Tube Clamps

Answer 35

Used for handling hot test tubes

Question 36

Test Tubes

Answer 36

Used to hold small amounts of liquids slightly heated

Question 37

Hot Plate

Answer 37

Used to heat materials in lab

Question 38

Crucible

Answer 38

Materials may be melted or subject to high temps