Polymers and matter

Question 1

proteins, carbs, and rubber

Answer 1

natural polymers

Question 2

hair, wool, fur, silk

Answer 2

protein

Question 3

cellulose, starch, plant gums

Answer 3

carbs

Question 4

plastics are —

Answer 4

synthetic polymers

Question 5

soften and flow when heated, reharden when cooled, easily molded

Answer 5

thermoplastic polymers

Question 6

do not soften when heated, heat resistant

Answer 6

thermoset polymers

Question 7

can be linear or branched

Answer 7

thermoplastics

Question 8

cross-linked

Answer 8

thermosets

Question 9

range from simple sugars to complex polymers of sugar subunits

Answer 9

carbs

Question 10

used in watercolors, pastels, and adhesives

Answer 10

carbs

Question 11

biopolymers composed of amino acids

Answer 11

proteins

Question 12

how are proteins made?

Answer 12

addition and condensation reactions

Question 13

start with a monomer with a double bond; break the double bond; link the monomers

Answer 13

addition polymerization

Question 14

start with monomers that have -OH groups sticking out; combine monomers by taking out a water molecule

Answer 14

condensation polymerization

Question 15

cellulose, polyester, spandex, and nylon are all examples of —

Answer 15

condensation polymers

Question 16

condensation polymers are or are not biodegradable

Answer 16

are

Question 17

addition polymers are or are not biodegradable?

Answer 17

are not

Question 18

anything that occupies space and has mass

Answer 18

matter

Question 19

a single type of matter in which every piece is alike

Answer 19

pure substance

Question 20

physical combination of two or more pure substances

Answer 20

mixtures

Question 21

soft, silver, highly reactive metals, never found in natural state

Answer 21

alkali metals

Question 22

less reactive and more dense than alkali metals; do not occur in natural state

Answer 22

alkaline earth

Question 23

means salt formers

Answer 23

halogens

Question 24

very low reactivity; only found in natural state

Answer 24

nobel gases

Question 25

lightest element, nonmetal

Answer 25

hydrogen

Question 26

atomic theory

Answer 26

dalton

Question 27

1. small indestructible particles 2. all atoms of the same element are the same 3. atoms of different elements are different

Answer 27

atomic theory

Question 28

in the nucleus

Answer 28

protons and neutrons

Question 29

outside the nucleus

Answer 29

electrons

Question 30

have the same number of protons but different number of neutrons

Answer 30

isotopes

Question 31

maximum number of electrons per shell

Answer 31

2 8 18 32