Chapter 1-2

Question 1

Chemical

Answer 1

Is any substance that has a definite composition

Question 2

Organic chemistry

Answer 2

The study of most carbon containing compounds

Question 3

Inorganic chemistry

Answer 3

The study of most carbon containing compounds which have organic fragments bonded to metal

Question 4

Physical chemistry

Answer 4

The study of properties and changes of matter and their relation to energy

Question 5

Analytical chemistry

Answer 5

The identification of the components and composition of materials

Question 6

Biochemistry

Answer 6

The study of substances and processes occcuri get the in living things

Question 7

Theoretical chemistry

Answer 7

The use of mathematics and computers to understand the principles behind observed chemical behavior and to design and to predict the properties of new components

Question 8

Mass

Answer 8

The measure of the amount of matter

Question 9

Matter

Answer 9

Anything that has mass and takes up space

Question 10

Atom

Answer 10

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

Question 11

Solid

Answer 11

Has definite volume and shape

Question 12

Liquid

Answer 12

Has definite volume but an indefinite shape

Question 13

Gas

Answer 13

Has neither a definite volume nor shape

Question 14

Group

Answer 14

The vertical columns of the periodic table also known as the family

Question 15

Period

Answer 15

The horizontal rows of elements in the periodic table

Question 16

Scientific method

Answer 16

A logical approach to solving problems by observing and collecting data, formulating hypotheses, testing hypotheses, and formulating theories that are supported by data

Question 17

System

Answer 17

A specific portion of matter in a given region of space that has been selected for study during an experiment or observation

Question 18

Hypothesis

Answer 18

Testable statement

Question 19

Model

Answer 19

An explanation of how phenomena occur and how data or events are related

Question 20

Theory

Answer 20

Is a broad generalization that explains a body of facts or phenomena

Question 21

SI

Answer 21

The international system of units, that is used for measurements world wide

Question 22

Conversion factor

Answer 22

A ratio derived from the equality between two different units that can be used to convert from one unit to the other

Question 23

Dimensional analysis

Answer 23

A mathematical technique that allows you to use units to solve problems involving measurements

Question 24

Accuracy

Answer 24

Refers to the closeness of measurements to the correct or accepted value of the quantity measured

Question 25

Precision

Answer 25

Refers to the closeness of a set of measurements of the same quantity made in the same way

Question 26

Percentage error

Answer 26

Calculated by subtracting the accepted value from the experimental value, dividing the difference by the accepted value, and multiplying by 100

Question 27

Scientific notation

Answer 27

Numbers are written in the form M X 10^n where M is a number greater than or equal to 1 but less than 10 N is a whole number

Question 28

Directly proportional

Answer 28

Two quantities that give a constant value when one is divided by the other

Question 29

Inversely proportional

Answer 29

Two quantities that have a constant product when the two values are multiplied by one another

Question 30

Chemistry

Answer 30

Is the study of the composition, structure, and properties of matter, the process that matter undergoes, and the energy that accompany these processes