FORMS OF MATTER CHEM TEST

Question 1

Matter

Answer 1

-Anything that has the same mass and volume

Question 2

Homogenous

Answer 2

-All the same
-Pure and uniform

Question 3

Heterogenous

Answer 3

-Not pure and uniform
-Different

Question 4

Substances

Answer 4

-Any matter that is pure and uniform (homogenous)

-Two types can be elements and compounds

Question 5

Elements

Answer 5

-The most basic form of matter that keeps its properties
-Homogenous
-All atoms of the same element have the same atomic number
-Symbol can either be a lone capital letter of one capital and one lowercase

Question 6

Compounds

Answer 6

-A chemical combination with changed properties
-All samples of the same compound are homogenous and have a definite composition

Question 7

Binary compound

Answer 7

-A compound consisting of 2 different elements

Question 8

Monatomic element

Answer 8

-One type of circle

Question 9

Diatomic Element

Answer 9

-2 of the same type of circle

Question 10

Compound in a diagram

Answer 10

2 or more different circles combined

Question 11

7 DIATOMIC ELEMENTS

Answer 11

-Hydrogen
-Nitrogen
-Fluorine
-Oxygen
-Iodine
-Chlorine
-Bromine

Question 12

Mixtures

Answer 12

-Composed of two or more different substances that can be physically separated
-The proportions of components can be varied
-Each component in a mixture retains its original properties

Question 13

Homogenous mixtures

Answer 13

-Matter that is pure and uniform
-Particles are evenly mixed and distributed

Ex. Salt water, chocolate milk

Question 14

Heterogenous mixtures

Answer 14

-Particles are not evenly mixed or distributed (layered)

Ex. Oil and water

Question 15

Filtration

Answer 15

-Seperate based on particle size
-The filter traps large particles while allowing smaller ones to pass through
-heterogenous only

Ex. Coffee filter

Question 16

Aqueous Solution

Answer 16

-A solution in which something is dissolved in water

Question 17

Distillation

Answer 17

-Separated based on polarity (boiling point)
-Substances that boil first are collected in a separated container with the substances with higher boiling points left behind
-Homogenous liquid mixtures

-Distillation of crude oil, making of alcohol

Question 18

Chromatography

Answer 18

-Particles are separated based on the attraction between particles
-Substances are more attracted to water will move up farther
-Pigments in ink

Question 19

Magnetism

Answer 19

-Using a magnet to separate substances

Question 20

Crystallization

Answer 20

-Cooling

Question 21

Solid

Answer 21

-Regular geometric pattern in the arrangement of the molecules (crystal lattice)
-Arranged in a tight and compact pattern
-Vibrate in place
-Definite shape and definite volume
-Strong attraction

Question 22

Liquids

Answer 22

-Particles can move around
-Particles are farther apart than in a solid
-Liquids take the shape of their container
-Not compressible
-Definite volume
-The forces of attraction between the molecules are weaker in a liquid than a solid

Question 23

Gases

Answer 23

-Particles fill their container
-Particles are very far apart
-Particles move in straight lines until they hit something

-Indefinite shape and volume
-The forces of attraction between the particles is very weak

Question 24

Intermolecular force (IMF)

Answer 24

-Attraction for yourself- how well you hold yourself together

Question 25

Mixtures can be separated ___________ into substances

Answer 25

physically

Question 26

Elements can be combined _________ to produce compounds / vice versa

Answer 26

chemically

Question 27

Chemical change

Answer 27

-Atoms are rearranged into new combinations
-Changes are not reversible without another reaction

Question 28

Evidence of a chemical change

Answer 28

-Energy produced
-Gas given off
-Color change
-Burning
-Decomposition
-Oxidation (rust)
-Combustion

Question 29

Physical change

Answer 29

-The rearrangement of existing particles

-Malleable (bendable)
-Ductile (turned into wire)
-Solubility
-Conductivity
-Luster
-Density

Question 30

Sublimation

Answer 30

-When a solid turns directly into a gas and skips over liquid phase

Question 31

Deposition

Answer 31

-When a gas becomes a solid and skips over the liquid phase