last physics test

Question 1

solid

Answer 1

cannot be squished, rigid, fixed shape

Question 2

liquid

Answer 2

can not be squished, not rigid, not fixed shape

Question 3

gas

Answer 3

can be squished, not rigid, not fixed shape

Question 4

substance definition

Answer 4

A substance is anything that contains matter

Question 5

Mixture

Answer 5

Any group of substances that are combined without a chemical reaction occuring

Question 6

Pure substance

Answer 6

A single substance, either an element or a substance that has been formed by a chemical reaction (a compound)

Question 7

Elements

Answer 7

an element is a type of atom, classified according to the number of protons it has (known as the atomic number). The elements are arranged on the periodic table according to the atomic number it has. . An element can be a single atom or a group of atoms that are all the same type.

Question 8

how many elements do we know of

Answer 8

118

Question 9

Aluminum

Answer 9

Al

Question 10

Calcium

Answer 10

Ca

Question 11

Carbon

Answer 11

C

Question 12

Chlorine

Answer 12

Cl

Question 13

Copper

Answer 13

Cu

Question 14

Gold

Answer 14

Au

Question 15

Helium

Answer 15

He

Question 16

Hydrogen

Answer 16

H

Question 17

Iron

Answer 17

Fe

Question 18

Lead

Answer 18

Pb

Question 19

Magnesium

Answer 19

Mg

Question 20

Mercury

Answer 20

Hg

Question 21

Neon

Answer 21

Ne

Question 22

Nickle

Answer 22

Ni

Question 23

Nitrogen

Answer 23

N

Question 24

Oxygen

Answer 24

O

Question 25

Pottasium

Answer 25

K

Question 26

Silicon

Answer 26

Si

Question 27

Silver

Answer 27

Ag

Question 28

Sodium

Answer 28

Na

Question 29

Sulfur

Answer 29

S

Question 30

Tin

Answer 30

Sn

Question 31

Uranium

Answer 31

U

Question 32

Zinc

Answer 32

Z

Question 33

Heterogenious mixture

Answer 33

When you can visually tell that there is more than one substance in a micture

Question 34

Homogenious

Answer 34

When you can't visually tell that there's more than one substance in a mixture

Question 35

Solutions

Answer 35

One substance (the solute) dissolves in another (the solvent)

Question 36

suspensions

Answer 36

A heterogenious mixture where two phases are involved. It can look like a sol

Question 37

Colloids

Answer 37

A