exam chapter 1

Question 1

chemistry is a natural science that deals with the study of

Answer 1

the composition, structure, properties, and changes of matter

Question 2

the branch of chemistry in which the composititions of materials are identified is known as

Answer 2

analytical chemistry

Question 3

example of an extensive property

Answer 3

mass

Question 4

example of heterogeneous mixtrue

Answer 4

mud

Question 5

example of a chemical change

Answer 5

burning in air

Question 6

example of physical change

Answer 6

slicing cheese in half

heating to boiling

Question 7

when water boils, what kind of property is that

Answer 7

physical

Question 8

every pure chemical compound consists of two or more elements that are

Answer 8

combined chemically

Question 9

example of extensive property of matter

Answer 9

volume

Question 10

example of intenseive property of matter

Answer 10

density

Question 11

a pure substance made up of only one kind of atom

Answer 11

element

Question 12

a homogeneous mixture is one that is

Answer 12

uniform in composition

Question 13

difference between a mixture and compound

Answer 13

mixtures can be separated by physical processes

Question 14

example of a pure substance

Answer 14

water

Question 15

homeogeneous mixtures are also called

Answer 15

solution

Question 16

a way to separate the different kinds of matter in a mixture is through

Answer 16

filtration

Question 17

what properties are common to elements within a single group on the periodic table

Answer 17

chemical properties and ability to bond to other atoms

Question 18

horizontal rows are called

Answer 18

periods

Question 19

the smallest unit of matter that retains the properties of that matter is

Answer 19

an atom

Question 20

name the metalloids

Answer 20

boron, silicon, germanium, arsenic, antimony, and tellurium