test on chapters 3-4

Question 1

the law of __________ states that compounds that form with the same elements but different masses of an element will be expressed as a ratio of small whole numbers

Answer 1

multiple proportions

Question 2

water boiling is an example of a ______ property

Answer 2

physical

Question 3

a log burning in a fireplace is an example of a _____ property

Answer 3

chemical

Question 4

the mass of an object is an ______ property

Answer 4

extensive

Question 5

rubbing alcohol vaporizing is an example of a ______ change

Answer 5

physical

Question 6

salt water is an example of a ________ mixture

Answer 6

homogeneous

Question 7

this seperation technique depends on the different boiling points of liquids

Answer 7

distillation

Question 8

this sep. technique has a solid change to a gas without turning into a liquid

Answer 8

sublimation

Question 9

fruit salad is an example of a _____ mixture

Answer 9

heterogeneous

Question 10

what is the mass number of an element with an atomic number of 26 and 31 neutrons?

Answer 10

57

Question 11

gold foil experiment

Answer 11

rutherford

Question 12

plum pudding model

Answer 12

thomson

Question 13

the electrons that are in an atoms outermost shell are called _____ electrons

Answer 13

valence

Question 14

this seperating technique seperates solids from liquids

Answer 14

filtration

Question 15

intensive property

Answer 15

melting point

Question 16

gas

Answer 16

atmosphere

Question 17

solid

Answer 17

book

Question 18

plasma

Answer 18

lightning

Question 19

extensive property

Answer 19

volume & mass

Question 20

liquid

Answer 20

water

Question 21

a ___ is the gaseous state of matter that is a solid or liquid at room temp.

Answer 21

vapor

Question 22

a ____ is made up of 2 or more different elements that are combined chemically

Answer 22

compound

Question 23

another name for a _____ mixture is a solution

Answer 23

homogeneous

Question 24

an ____ is a pure substance that cannot be seperated into simpler substances

Answer 24

element

Question 25

a grid that organizes the elements is called the ____ _____

Answer 25

periodic table

Question 26

a lake freezing over is an example of a _____ change

Answer 26

phase

Question 27

_____ atomic theory states that matter cannot be created or destroyed

Answer 27

daltons

Question 28

alpha radiation emits an alpha particle that is made up of ___ protons and neutrons

Answer 28

2

Question 29

______ radiation gives off high-energy radiation

Answer 29

gamma

Question 30

the _____ _____ is the numbers of protons plus the number of neutrons

Answer 30

mass number

Question 31

the ____ ____ is the number of protons in the atom

Answer 31

atomic number

Question 32

_____ performed the oil-drop experiment

Answer 32

millikan

Question 33

greek philosopher, ____, said that all matter is made up of fire, earth, air, and water

Answer 33

aristotle

Question 34

frying an egg is an example of a _____ change

Answer 34

chemical