Chapter Test 1-3

Question 1

dissolving salt in water - p or c

Answer 1

p or c

Question 2

iron rusting to produce iron oxide - p or c

Answer 2

c

Question 3

bending clay - p or c

Answer 3

p

Question 4

exploding dynamite - p or c

Answer 4

c

Question 5

oxidation of aluminum - p or c

Answer 5

c

Question 6

wine transforming into vinegar - p or c

Answer 6

c

Question 7

freezing water - p or c

Answer 7

p

Question 8

cutting a piece of paper - p or c

Answer 8

p

Question 9

condescending water - p or c

Answer 9

p

Question 10

combing sodium and chlorine to form salt - p or c

Answer 10

c

Question 11

oxygen is an example of this

Answer 11

element

Question 12

solutions are contained within this category

Answer 12

homogenous mixture

Question 13

water is an example of this

Answer 13

compound

Question 14

a substance that is composed of only one type of atom

Answer 14

element

Question 15

a sugar water mixture in which all the salt has been dissolved

Answer 15

homogenous mixture

Question 16

two different elements chemically combined

Answer 16

compound

Question 17

all of these are located on the periodic table

Answer 17

element

Question 18

a mixture that is non-uniform

Answer 18

heterogeneous mixture

Question 19

oil and water

Answer 19

heterogeneous mixture

Question 20

a physical combination

Answer 20

homogenous and heterogeneous mixture

Question 21

how hormones are produced in the brain

Answer 21

biochemistry

Question 22

use computers and math to predict the effects of carbon dioxide on the atmosphere

Answer 22

theoretical chemistry

Question 23

study of compounds that do not contain carbon

Answer 23

inorganic chemistry

Question 24

a forensic scientist identifies the composition of evidence collected at a crime scene

Answer 24

analytical chemistry

Question 25

the study of carbon compounds

Answer 25

organic chemistry

Question 26

a student studies the change in temperature when salt is added to water

Answer 26

physical change

Question 27

which property is extensive

Answer 27

mass

Question 28

four darts are thrown at the dartboard and all land close to each other and at the bull’s eye

Answer 28

accurate and precise

Question 29

what is qualitative?

Answer 29

deposits are formed from an evaporated liquid (the determination of non-numerical information about a chemical species, a reaction, etc)

Question 30

which observation is quantitative?

Answer 30

water changes temperature by two degrees at 100 degrees Celsius

Question 31

the space that an object takes up is

Answer 31

volume

Question 32

a theory is best described as

Answer 32

seeks to describe the underlying physical phenomena that give rise to chemistry and the properties of atoms, molecules, and materials.

Question 33

the four major states of the scientific method are

Answer 33

observing, formulating hypotheses, testing hypotheses, and theorizing

Question 34

the smallest unit of an element that has the properties of that element is a(n)

Answer 34

atom