Chemistry

Question 1

Periodic Table Families

Answer 1

•Alkali Metals
•Alkaline Earth Metals
•Transition Metals
•Boron Group
•Carbon Group
•Nitrogen Group
•Halogens
•Noble Gases
•Rare Earth Metals

Question 2

All Models for Atom

Answer 2

•4 Elements (Aristotle)
•Indivisible Atomos (Democritus)
•Billiard Ball (Dalton)
•Plum Pudding (Thomson)
•Nuclear (Rutherford)
•Planetary (Bohr)
•Quantum Mechanical (Shrodïnger)

Question 3

Liquid to Gas

Answer 3

Boiling

Question 4

Gas to Liquid

Answer 4

Condensation

Question 5

Liquid to Solid

Answer 5

Freezing

Question 6

Solid to Liquid

Answer 6

Melting

Question 7

Solid to Gas

Answer 7

Sublimation

Question 8

Gas to Solid

Answer 8

Deposition

Question 9

Gas to Plasma

Answer 9

Ionization

Question 10

Plasma to Gas

Answer 10

Recombination

Question 11

Physical Classification of Matter

Answer 11

•Solid
•Liquid
•Gas
•Plasma

Question 12

Chemical Classification of Matter

Answer 12

•Pure Substance
•Mixture

Question 13

Pure Substance Classification

Answer 13

Element
•Metal
•Non-Metal
•Metalloid
Compound
•Organic
•Inorganic

Question 14

Mixture Classification

Answer 14

Homogeneous
•Solution
•Alloy
•Colloid
Heterogeneous
•Colloid
•Suspension

Question 15

Particle Theory

Answer 15

•All matter is made up of tiny particles
•Particles attract one another
•Particles are in constant, random motion
•Different substance are made of different particles
•All particles have space between them
•Particles move faster with heat

Question 16

Solid Particle Movement

Answer 16

Vibrational

Question 17

Liquid Particle Movement

Answer 17

•Vibrational
•Rotational

Question 18

Gas Particle Movement

Answer 18

•Vibrational
•Rotational
•Translational

Question 19

Where are electrons found?

Answer 19

Orbiting nucleus

Question 20

Where are protons found?

Answer 20

Nucleus

Question 21

Where are neutrons found?

Answer 21

Nucleus

Question 22

Compare elements and compounds

Answer 22

•Element is made of one type of atom
•Compound is made of multiple compounds
•Both are pure substances

Question 23

Mass of proton

Answer 23

1 amu

Question 24

Mass of electron

Answer 24

1 amu

Question 25

Mass of neutron

Answer 25

1/2000 amu

Question 26

Identity of an element

Answer 26

Atomic Number or Number of protons

Question 27

What substances glow when heated?

Answer 27

Gas

Question 28

What is a clue about the physical identity of a substance?

Answer 28

Density

Question 29

What is ionic compound made of?

Answer 29

Metal + Non Metal

Question 30

What are covalent bonds made of?

Answer 30

Non metal + non metal

Question 31

What did the gold foil experiment prove?

Answer 31

Atoms have tiny, positively charged nucleus

Question 32

Who discovered electrons?

Answer 32

Thomson (Plum Pudding)

Question 33

Charcoal

Answer 33

•Joined with other carbon atoms •98% mixed with other chemicals

Question 34

Graphite

Answer 34

•Good conductor •Organized hexagons (Interconnected sheets)

Question 35

Diamonds

Answer 35

•Do not conduct electricity •High temp. and pressure •Regular patterns •Interconnected in 3 dimensions

Question 36

How does diamond mining effect the economy?

Answer 36

•Expensive to operate machinery •15% diamond supply from Canada •Canada = top 3 diamond producers

Question 37

How does diamond mining effect the environment?

Answer 37

•Smaller than gold mining imprint •Water changed (Fish habitats lost, lake drainage, etc)

Question 38

How does tantalum affect the gorillas?

Answer 38

It's mined from their habitat, thus destroying it

Question 39

What happens when iron meets oxygen?

Answer 39

Rust

Question 40

What happens when copper meets oxygen?

Answer 40

Corrosion

Question 41

What happens if the water that meets the iron has salt?

Answer 41

It rusts faster

Question 42

What is copper oxide?

Answer 42

Coated with green film (patina/verdigris) and protects copper from further corrosion

Question 43

What does oxygen and water cause to copper?

Answer 43

•Becomes weak •Becomes brittle •Rust

Question 44

Cation

Answer 44

Positively charged, ionic bond

Question 45

Anion

Answer 45

Negatively charged, covalent bond

Question 46

Prefixes

Answer 46

Mono - One Di - Two Tri - Three Tetra - Four Penta - Five Hexa - Six Hepta - Seven Octa - Eight Nona - Nine Deca - Ten

Question 47

Diatonic elements

Answer 47

Oxygen, Nitrogen, Hydrogen, Chlorine, Bromine, Iodine, Fluorine

Question 48

When do we use prefixes?

Answer 48

Covalent compounds

Question 49

When do we use "ide"

Answer 49

For ions (e.g. Carbon dioxide, Potassium sulfide)

Question 50

Oxygen

Answer 50

Glowing splint relights

Question 51

CO²

Answer 51

Lit splint is extinguished

Question 52

Hydrogen

Answer 52

Lit splint makes a pop noise