Chapter 1 test questions

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 Chem

Question 4

Study of non-organic substances that do not have carbon

(includes oxides and carbonates)

Answer 4

Inorganic Chem

Question 5

Any substances that has a definite composition

Answer 5

Chemical

Question 6

Often accidental discoveries

Answer 6

Basic research

Question 7

Helps solve everyday problems
-Solves a specific problem-

Answer 7

Applied research

Question 8

Anything that has mass and takes up space

Answer 8

Matter

Question 9

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

Answer 9

atom

Question 10

substances that enter into a chemical change

Answer 10

reactant

Question 11

Substances that are formed by a chemical change

Answer 11

product

Question 12

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

Answer 12

mixture

Question 13

Horizontal rows of elements in the periodic table

Answer 13

period

Question 14

vertical columns of the periodic table

Answer 14

groups

Question 15

electrons on the outermost energy level of an atom.

Answer 15

valence electrons

Question 16

What is the state change?

Solid to gas

Answer 16

sublimation

Question 17

What is the state change?

gas to solid

Answer 17

deposition

Question 18

Endo or Exothermic?

Lower energy state to higher energy state (products have more energy)

Answer 18

Endothermic

Question 19

Endo or Exothermic?

Higher energy state to lower energy state (products have less energy)

Answer 19

Exothermic

Question 20

Which variable is directly manipulated during an experience

Answer 20

Independent variable

Question 21

What variable is affected

Answer 21

dependent variable

Question 22

bendable properties of metal

Answer 22

malleable

Question 23

what is being dessolved

Answer 23

Solute

Question 24

What is doing the dissolving

Answer 24

Solvent

Question 25

Which of the following is considered organic -C2H4 - C5-H10-O5 -CO2 -H2O -MgBr2

Answer 25

C2H4 and C5-H10-O5

Question 26

List the 6 branches of chemistry

Answer 26

Organic Analytical Theoretical Biochemistry Inorganic Physical

Question 27

Which of the following is considered a compound -NaCl -Cl - water

Answer 27

NaCl and water

Question 28

Which of the following would be considered an extensive physical property -Length - Mass - Melting point - Color

Answer 28

Length and Mass

Question 29

Identify the state of matter -no fixed volume -no fixed state

Answer 29

gas

Question 30

Identify the state of matter -fixed volume -Not fixed shape

Answer 30

liquid

Question 31

Identify the state of matter -fixed volume -fixed shape

Answer 31

solid

Question 32

Identify the state of matter -ionized gas

Answer 32

plasma

Question 33

Identify the state of matter -loosely packed particles

Answer 33

liquid

Question 34

Identify the state of matter -tightly packed particles

Answer 34

solid

Question 35

Identify the state of matter -particles spread apart

Answer 35

gas

Question 36

list the five chemical properties of a chemical reaction

Answer 36

-gas - precipitate -light -color change -temp change

Question 37

Which of the following are considered endothermic -Sublimation -Evaporation -Freezing -Melting

Answer 37

-Sublimation -Evaporation -Melting

Question 38

Which of the following are considered exothermic -Sublimation -Deposition -Freezing -Condensation

Answer 38

-Deposition -Freezing -Condensation

Question 39

Which of the following is a pure substance -Fe -Water -Salt water -CuCl2

Answer 39

Fe Water CuCl2

Question 40

Changing the mass of a sample would affect its extensive or intensive physical properties

Answer 40

Extensive

Question 41

Which of the following would be considered a chemical reaction (a) - After mixing two liquids, the mixture increases in temperature (b) - Boiling water and gas is given off (c) - After mixing a liquid and a solid, a gas is given off (d) - After mixing two liquids together, a solid forms

Answer 41

(a) (c) (d)

Question 42

Groups are _______ columns on the periodic table.

Answer 42

verticle

Question 43

Periods or rows identify the number of ______ ______ that elements in that row contain

Answer 43

energy levels

Question 44

Metal, Metaloid, or Non Metal malleable

Answer 44

Metal

Question 45

Metal, Metaloid, or Non Metal shiny and brittle

Answer 45

Metaloid

Question 46

Metal, Metaloid, or Non Metal dull and brittle

Answer 46

non metal or metal

Question 47

Metal, Metaloid, or Non Metal conductor

Answer 47

metal

Question 48

Metal, Metaloid, or Non Metal semiconductor

Answer 48

mettaloid

Question 49

Metal, Metaloid, or Non Metal nonconductor

Answer 49

non metal

Question 50

What is the name of the hottest zone of the bunsen burner

Answer 50

main combustion zone

Question 51

What feature of the bunsen burner allows to produce a hotter flame than previous laboratory burner

Answer 51

air vent

Question 52

What are three safety precautions before lighting the bunsen burner

Answer 52

-clear workspace -inspect bunsen burner -put goggles and apron on