Chapter 2 study guide

Question 1

anything that has mass and takes up space

Answer 1

matter

Question 2

a characteristic of a pure substance that can be observed without changing it into another substance

Answer 2

physical property

Question 3

A characteristic of a pure substance that describes its ability to change into different substances.

Answer 3

chemical property

Question 4

A pure substance that can’t be broken down into any other substances by chemical or physical means

Answer 4

element

Question 5

the basic particle from which all elements are made

Answer 5

atom

Question 6

a force of attraction between two atoms when they combine

Answer 6

chemical bond

Question 7

groups of two or more atoms held together by chemical bonds.

Answer 7

molecule

Question 8

a pure substance made of two or more elements chemically combined in a set ratio

Answer 8

compound

Question 9

shows the elements in the compound and the ratio of atoms

Answer 9

chemical formula

Question 10

made of two or more substance that are together in the same place but not chemically combined

Answer 10

mixture

Question 11

a mixture where you can see the different parts

Answer 11

heterogeneous mixture

Question 12

a mixture where you can’t see the different parts

Answer 12

homogeneous mixture

Question 13

an example of a homogeneous mixture

Answer 13

solution

Question 14

any change that alters the form or appearance of matter but doesn’t make any substance in the matter into a different substance

Answer 14

physical change

Question 15

a chemical reaction that occurs when a substance is transformed into a different substance

Answer 15

chemical change

Question 16

that fact that matter isn’t created or destroyed in any chemical or physical change

Answer 16

law of conservation of matter

Question 17

the ability to do work or cause change

Answer 17

energy

Question 18

a measure of the average energy or random motion of particles of matter

Answer 18

temperature

Question 19

the total energy of all of the particles in an object

Answer 19

thermal energy

Question 20

a change in which energy is taken in

Answer 20

endothermic energy

Question 21

a change in which energy is given off

Answer 21

exothermic energy

Question 22

the energy stored in the chemical bonds between atoms

Answer 22

chemical energy

Question 23

a form of energy that travels through space as waves

Answer 23

electromagnetic energy

Question 24

the energy or electrically charged particles moving from one place to another

Answer 24

electrical energy

Question 25

two metal strips that are places in a solution but do not touch.

Answer 25

electrode

Question 26

a single kind of matter that is pure, meaning it always has a specific makeup and a specific set of properties

Answer 26

Substance