Lecture 1

Question 1

the scientific discipline which studies matter

Answer 1

chemistry

Question 2

2 types of chemistry

Answer 2

organic

inorganic

Question 3

the study of carbon and its compounds

Answer 3

organic chemistry

Question 4

the study of all other elements

Answer 4

inorganic chemistry

Question 5

3 other disciplines that use chemistry

Answer 5

biology
physics
geology

Question 6

2 fundamental properties in the universe

Answer 6

energy and matter

Question 7

anything that has mass and takes up space

Answer 7

matter

Question 8

3 physical states of matter

Answer 8

solid
liquid
gas

Question 9

2 kinds of matter

Answer 9

pure substance

mixture

Question 10

matter that always has definite and constant somposition

Answer 10

pure substance

Question 11

physical combination of 2 or more substances

Answer 11

mixture

Question 12

True/False:

Answer 12

mixture keep their own identities and physical properties

Question 13

2 types of pure substances

Answer 13

element

compound

Question 14

pure substance that cannot be chemically separated into simpler substances

Answer 14

element

Question 15

a chemical combination of 2 or more different elements

Answer 15

compound

Question 16

True/False: compounds always have definite composition

Answer 16

True

Question 17

What’s the smallest unit of an element

Answer 17

atom

Question 18

what’s the smallest unit of a compound

Answer 18

molecule

Question 19

chemistry deals with _____, _____, and _____ of matter

Answer 19

composition
properties
changes

Question 20

the way different parts of matter are put together

Answer 20

structure

Question 21

2 types of properties

Answer 21

physical

chemical

Question 22

Type of property:

observed without attempting to change a substance

Answer 22

physical

Question 23

Type of property:

observed when attempting to change a substance

Answer 23

chemical

Question 24

2 types of changes of matter

Answer 24

physical

chemical

Question 25

Type of change:

a process that does not alter composition of substance

Answer 25

physical

Question 26

Type of change:

a process that changes composition of substance

Answer 26

chemical

Question 27

logical process used to acquire new knowledge in any science

Answer 27

scientific method

Question 28

4 steps to scientific method

Answer 28

1. problem
2. facts
3. hypothesis
4. theory

(experimentation)

Question 29

procedure for obtaining more info about a problem

Answer 29

experimentation

Question 30

a hypothesis that has been tested and validated over a long period of time

Answer 30

theory

Question 31

2 types of mixtures

Answer 31

heterogeneous

homogeneous

Question 32

Type of mixture:

contains only 1 phase which has uniform properties (well mixed)

Answer 32

homogeneous

Question 33

Type of mixture:

contains visibly different parts/phases (least mixed)

Answer 33

heterogeneous

Question 34

what type of mixture can be seen and can have many phases

Answer 34

heterogeneous

Question 35

what type of mixture cannot be seen and is only 1 phase

Answer 35

homogeneous

Question 36

what type of mixture does a solution fall under

Answer 36

homogeneous