Unit 1 vocab

Question 1

The knowledge obtained by observing natural events and conditions in order to discover facts and formulate laws or principles that can be verified or tested

Answer 1

Science

Question 2

The study of

-the composition, structure, and properties of matter
-the processes that matter undergoes
-the energy changes that accompany these processes

Answer 2

Chemistry

Question 3

Study of most carbon containing compounds

(excludes oxides and carbonates)

Answer 3

organic chemistry

Question 4

Study of non-organic substances that do not have carbon

(includes oxides and carbonates)

Answer 4

Inorganic Chemistry

Question 5

Study of the properties and changes of matter and their relation to energy

Answer 5

Physical Chemistry

Question 6

Identification of the components and composition of materials

Answer 6

Analytical Chemistry

Question 7

Study of substances and processes in living things (living cells-enzymes)

Answer 7

Biochemistry

Question 8

Use of mathematics and computers to understand the principle behind observed chemical behavior and design and predict the properties of new compounds

Answer 8

Theoretical Chemistry

Question 9

Any substances that has a definite composition

Answer 9

chemical

Question 10

Often accidental discoveries

Answer 10

Basic research

Question 11

Helps solve everyday problems
-Solves a specific problem-

Answer 11

Applied research

Question 12

lag far behind basic and applied research

Answer 12

technological application

Question 13

Anything that has mass and takes up space

Answer 13

matter

Question 14

a measure of the amount of matter

Answer 14

mass

Question 15

a substance that has fixed composition. Homogeneous, and has exactly the same characteristic properties

(an element or compound)

Answer 15

A pure substance

Question 16

The smallest unit of an element that maintains the chemical identity of that element

Answer 16

atom

Question 17

A pure substance that cannot be broken down into simpler, stable substances and is made of one type of atom

Answer 17

element

Question 18

A pure substance that can be broken down into simple stable substances

Answer 18

compound

Question 19

A characteristic that can be observed or measure without changing the identity of the substance

(boiling point, color, shape)

Answer 19

physical property

Question 20

Depends on the amount of matter that is present

(volume, mass, energy)

Answer 20

extensive physical properties

Question 21

Does not depend on the amount of matter present

(melting point, density, conduct, electricity)

Answer 21

Intensive physical properties

Question 22

Identity of substance does not change

Example

deposition, sublimation, and freezing

Answer 22

physical change

Question 23

Use of mathematics and computers to understand the principle behind observed chemical behavior and design and predict properties of new compounds

Answer 23

Theoretical chemistry

Question 24

Any substance that has a definite composition

Answer 24

chemical

Question 25

Research that often fixes a problem accidentally

Answer 25

Basic research

Question 26

Research that attempts to solve a specific problem

Answer 26

Applied research

Question 27

lag far behind basic and applies research

Answer 27

technological application

Question 28

Physical forms of matter

Answer 28

states of matter

Question 29

Identify states of matter -Fixed volume and shape -particles are tightly pact

Answer 29

solid

Question 30

Identify states of matter -fixed volume but not a fixed shape -particles loosely packed

Answer 30

liquid

Question 31

Identify states of matter -Neither fixed volume nor fixed shape -particles move very fast

Answer 31

gas

Question 32

Identify states of matter -a physical state of matter in which atoms lose most of their electrons

Answer 32

plasma

Question 33

A substance's ability to undergo changes that transform it into different substances.

Answer 33

chemical property

Question 34

The substances that react in a chemical change

Answer 34

reactants

Question 35

The substances that are formed by the chemical change

Answer 35

products

Question 36

What are some examples of chemical change

Answer 36

gas light color change precipitate temp change

Question 37

Exothermic or Endothermic Higher energy state to lower energy (energy leaves)

Answer 37

exothermic

Question 38

Exothermic or Endothermic Lover energy state to higher energy state (energy enters)

Answer 38

Endothermic

Question 39

A blend of two or more kinds of matter, each of which retains its own identity and properties

Answer 39

mixture

Question 40

Mixtures that are uniform in composition

Answer 40

homogeneous mixture

Question 41

Mixtures that are not uniform throughout

Answer 41

heterogenous

Question 42

something with the same proportion of components throughout

Answer 42

solution

Question 43

what is being dissolved

Answer 43

solvent

Question 44

what is dissolving

Answer 44

solute