chapter 1 part 2

Question 1

branch of chemistry that involves the study of substances and processes occurring in living things

Answer 1

biochemistry

Question 2

branch of chemistry that deals with substances containing carbon

Answer 2

organic chemistry

Question 3

branch of chemistry using mathematical models and computer models

Answer 3

theoretical chemistry

Question 4

definition of a chemical

Answer 4

any substance that has a definite composition

Question 5

fundamental building block of matter is the

Answer 5

atom

Question 6

an element is made up of one type of

Answer 6

atom

Question 7

extensive properties include

Answer 7

volume and mass

Question 8

intensive properties

Answer 8

density

Question 9

if a mixture is uniform in composition its is considered to be

Answer 9

homogeneous

Question 10

what is the shininess of a metal called

Answer 10

luster

Question 11

carbon is classified as a

Answer 11

nonmetal

Question 12

silicon is a

Answer 12

metalloid

Question 13

common forms of energy

Answer 13

kinetic
potential
heat 
electrical 
light
chemical

Question 14

branches of chemistry

Answer 14

organic
analytical
inorganic
biochemistry
physical
theoretical

Question 15

a scientific law is

Answer 15

a statement based on experiments that are true and no exceptions are known

Question 16

two of the fundamental laws of nature

Answer 16

Law of Conservation of Matter
and
Law of Conservation of Energy

Question 17

law of conservation of matter says

Answer 17

matter can not me created nor destroyed

Question 18

Law of conservation of energy says

Answer 18

energy cannot be created nor destroyed in a chemical reaction. only converted from one form to another

Question 19

the laws of conservation of matter and energy can be combined to say the amount of matter and energy in the world is fixed.

Answer 19

E=mc^2

Question 20

Who made the theory of Relativity

Answer 20

Albert Einstein

Question 21

what does 
e-
m-
c-
stand for

Answer 21

e- amount of energy liberated
m-mass of matter transformed into energy
c-speed of light
light is multiplied by 3x10^8 meters per second

Question 22

an element is a

Answer 22

pure substance that cannot be broken down.

made of only one type of atom

Question 23

a molecule is the

Answer 23

smallest particle of an element or compound that can have a stable independent existence.

Question 24

extensive properties are properties that depend on

Answer 24

the amount of material examined

Question 25

Intensive properties are properties that

Answer 25

do not depend on

Question 26

horizontal rows of elements are called

Answer 26

period or series

Question 27

diatomic molecules

Answer 27

hydrogen
oxygen
nitrogen
chlorine 
fluorine
bromine 
iodine

Question 28

sucrose is

Answer 28

C12H22O11

Question 29

1st group on periodic table is called

Answer 29

alkaline metals

Question 30

17th group is called

Answer 30

halogens