Chemistry

Question 1

What are the three primary states of matter?

Answer 1

Solid, liquid, gas

Question 2

True or False: Atoms are the smallest units of matter.

Answer 2

True

Question 3

Fill in the blank: The state of matter that has a definite shape and volume is called a __________.

Answer 3

solid

Question 4

What is the state of matter that takes the shape of its container but has a definite volume?

Answer 4

liquid

Question 5

Which state of matter has no definite shape or volume?

Answer 5

gas

Question 6

What do you call a substance that cannot be broken down into simpler substances?

Answer 6

element

Question 7

How many basic states of matter are commonly recognized?

Answer 7

Three

Question 8

Multiple Choice: Which of the following is NOT a state of matter? a) Solid b) Liquid c) Plasma d) Energy

Answer 8

d) Energy

Question 9

What is the term for a change from solid to liquid?

Answer 9

melting

Question 10

True or False: Gases have a fixed volume.

Answer 10

False

Question 11

What is the smallest particle of an element called?

Answer 11

atom

Question 12

Fill in the blank: The process of a liquid turning into a gas is called __________.

Answer 12

evaporation

Question 13

What is the term for the change from gas to liquid?

Answer 13

condensation

Question 14

Name the state of matter characterized by particles that are tightly packed together and vibrate in place.

Answer 14

solid

Question 15

What is the term for a substance made of two or more different types of atoms?

Answer 15

compound

Question 16

Multiple Choice: Which state of matter has particles that are far apart and move freely? a) Solid b) Liquid c) Gas d) Plasma

Answer 16

c) Gas

Question 17

True or False: All elements can exist in all three states of matter.

Answer 17

False

Question 18

What is the term for the force that holds atoms together in a molecule?

Answer 18

chemical bond

Question 19

What is the process of a solid turning directly into a gas called?

Answer 19

sublimation

Question 20

Fill in the blank: The state of matter that can conduct electricity and is made of charged particles is called __________.

Answer 20

plasma

Question 21

What do we call a mixture that has a uniform composition throughout?

Answer 21

homogeneous mixture

Question 22

What is the name of the table that organizes all known elements?

Answer 22

Periodic Table

Question 23

True or False: Atoms of the same element can have different numbers of neutrons.

Answer 23

True

Question 24

What is the term for atoms of the same element with different masses?

Answer 24

isotopes

Question 25

Fill in the blank: The nucleus of an atom contains __________ and __________.

Answer 25

protons, neutrons

Question 26

What particle in an atom has a negative charge?

Answer 26

electron

Question 27

What is the main difference between an element and a compound?

Answer 27

An element consists of only one type of atom, while a compound consists of two or more different types of atoms.

Question 28

True or False: Liquids can be compressed easily.

Answer 28

False

Question 29

What is the term used for the amount of space an object occupies?

Answer 29

volume

Question 30

Multiple Choice: What is the primary state of matter in stars? a) Solid b) Liquid c) Gas d) Plasma

Answer 30

d) Plasma

Question 31

What is the term for the arrangement of electrons around the nucleus of an atom?

Answer 31

electron configuration

Question 32

Fill in the blank: The basic building blocks of matter are __________.

Answer 32

atoms

Question 33

What is the term for a change from liquid to solid?

Answer 33

freezing

Question 34

What are the two main types of mixtures?

Answer 34

homogeneous and heterogeneous

Question 35

What is the name for the positively charged particles in an atom?

Answer 35

protons

Question 36

True or False: The mass number of an atom is the sum of protons and electrons.

Answer 36

False

Question 37

What is the term for the physical state of matter that can flow and take the shape of its container?

Answer 37

liquid

Question 38

Fill in the blank: The __________ of a substance is a measure of how much mass is contained in a given volume.

Answer 38

density

Question 39

What is the process called when a solid changes directly into a gas?

Answer 39

Sublimation

Question 40

True or False: Melting is the process of a liquid becoming a gas.

Answer 40

False

Question 41

Fill in the blank: The change of state from gas to liquid is known as __________.

Answer 41

Condensation

Question 42

What is the term for the change of state from liquid to solid?

Answer 42

Freezing

Question 43

Multiple Choice: Which of the following is an example of evaporation? A) Ice melting B) Water boiling C) Snow turning into water

Answer 43

B) Water boiling

Question 44

What is the main factor that affects changes of state?

Answer 44

Temperature and pressure

Question 45

True or False: Deposition is the process where gas becomes a solid without passing through the liquid state.

Answer 45

True

Question 46

Short Answer: Describe what happens during the melting process.

Answer 46

During melting, a solid absorbs heat and transitions to a liquid as its temperature rises.

Question 47

Fill in the blank: The temperature at which a liquid turns into a gas is called its __________.

Answer 47

Boiling point

Question 48

What is the change of state called when a liquid turns into a gas below its boiling point?

Answer 48

Evaporation