Classification of Matter/Elements Test (9/6/`7)

Question 1

Element

Answer 1

a substance that cannot be broken down into simpler substances by chemical means

Question 2

Compound

Answer 2

Made up of two or more different elements

Question 3

Homogenous Mixture (Solution)

Answer 3

Uniform structure of composition

Question 4

Heterogenous mixture

Answer 4

composed of dissimilar components

Question 5

What are the 3 major categories of the periodic table?

Answer 5

Metals, nonmetals, metalloids

Question 6

What is the difference between periods and groups?

Answer 6

Groups run horizontally, periods run vertically

Question 7

What does the atomic number tell you?

Answer 7

Number of protons

Question 8

Physical properties/changes

Answer 8

no composition change

Question 9

Chemical properties/changes

Answer 9

conversion into different substances, composition change

Question 10

Extensive properties

Answer 10

Property that depends on the amount of matter in a sample

Question 11

Intensive properties

Answer 11

Property that depends on the type of matter in a sample

Question 12

What are the six branches of Chemistry

Answer 12

Organic, inorganic, physical, Biochemistry, analytical, theoretical

Question 13

What are 3 basic reasons to study chemistry?

Answer 13

Explaining the natural world, Preparing for careers, informing citizens

Question 14

Filtration

Answer 14

Separating a solid from a liquid in a heterogenous mixture

Question 15

Distillation

Answer 15

Liquid is boiled to produce a vapor that is then condensed to liquid

Question 16

Matter

Answer 16

anything that has mass and takes up space

Question 17

chemical

Answer 17

any substance that has a definite composition

Question 18

Organic chemistry

Answer 18

study of most carbon containing compounds

Question 19

Inorganic chemistry

Answer 19

the study of chemicals that do not contain carbon

Question 20

Physical chemistry

Answer 20

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

Question 21

Analytical chemistry

Answer 21

the identification of the components and composition of matter

Question 22

Biochemistry

Answer 22

the study of substances and processes occuring in living things

Question 23

Theoretical chemistry

Answer 23

the use of math and computers to understand the principles behind observed chemical behavior and to design and predict the properties of new compounds

Question 24

What impact do chemists have on materials, medicine, agriculture, and the environment

Answer 24

new materials
supply materials 
replace body parts
prescription drugs
developing biotechnology
producing crops
testing soil
fighting pests
identifying and preventing polution

Question 25

examples of extensive properties

Answer 25

mass, volume

Question 26

Examples of intensive properties

Answer 26

density, boiling point, melting point, color

Question 27

what are the 3 common states of matter

Answer 27

solid, liquid, gas

Question 28

Solid

Answer 28

form of matter that has a definite shape and volume

Question 29

liquid

Answer 29

indefinite shape, flows, yet has a fixed volume

Question 30

gas

Answer 30

takes on both the shape and volume of its container

Question 31

vapor

Answer 31

the gas state of a substance that is generally a liquid or solid at room temperature

Question 32

Plasma

Answer 32

a high temp state in which atoms lose most of their electrons

Question 33

reactant

Answer 33

substance present and the start of a reaction

Question 34

product

Answer 34

substance produced in the reaction

Question 35

what are possible clues that a chemical change takes place?

Answer 35

transfer of energy production of gas change in color formation of precipitate

Question 36

Precipitate

Answer 36

a solid that forms and settles out of a liquid mixture

Question 37

mixture

Answer 37

blend of two or more kinds of matter

Question 38

what is another name for a homogenous mixture

Answer 38

solution

Question 39

2 ways mixtures can be separated

Answer 39

filtration and distillation

Question 40

where are element symbols derived from?

Answer 40

Latin and Greek names

Question 41

periodic table

Answer 41

an arrangement of elements in which the elements are separated into groups based on a set of repeating properties

Question 42

nonmetals

Answer 42

poor conductors of heat and electric current, most are gases at room temperature

Question 43

metalloid

Answer 43

generally has properties that are similar to those of nonmetals and metals.

Question 44

noble gases

Answer 44

unreactive