Branches of Chemistry, Matter and Sub-atomic particles

Question 1

deals with the identification and quantification of chemical substances.

Answer 1

Analytical Chemistry

Question 2

deals with the physical properties of chemical substances using physics and mathematical computations.

Answer 2

Physical Chemistry

Question 3

deals with carbon compounds.

Answer 3

Organic Chemistry

Question 4

deals with compound without H and C.

Answer 4

Inorganic Chemistry

Question 5

deals with chemical reactions with living things.

Answer 5

Biochemistry

Question 6

anything with mass and volume and takes up space.

Answer 6

Matter

Question 7

this matter has a definite shape and is not free-flowing.

Answer 7

Solid

Question 8

this matter conforms to the shape of the container it is in.

Answer 8

Liquid

Question 9

this matter occupies the whole space of a container and its particles are distant to each other.

Answer 9

Gas

Question 10

this matter is a collection of charged particles containing nearly equal numbers of positive and negative ions.

Answer 10

Plasma

Question 11

the actual, non-chemical, aspect of matter.

Answer 11

Physical (property)

Question 12

the elements which the matter is made of.

Answer 12

Chemical (property)

Question 13

a change in the phase or state of a substance. Some physical properties of substances are altered but its chemical composition remain unchanged.

Answer 13

Physical (change)

Question 14

a change in composition of its molecules changes. The properties of the original substances with new properties are produced.

Answer 14

Chemistry (change)

Question 15

solid to liquid (ex. melting of ice and snow).

Answer 15

Melting or Fusion

Question 16

liquid to solid (ex. freezing water of a liquid material).

Answer 16

Freezing

Question 17

solid to gas (ex. dry ice).

Answer 17

Sublimation

Question 18

gas to solid (ex. fromation of snow and frost).

Answer 18

Deposition

Question 19

liquid to gas (ex. water cycle).

Answer 19

Vaporization

Question 20

gas to liquid (ex. formation of dew).

Answer 20

Condensation

Question 21

the periodic table; cannot be broken down.

Answer 21

Elements

Question 22

two or more elements bonded together. Can be broken down or created by means of reaction but not by mehcanical or physical techniques.

Answer 22

Compound

Question 23

is the smallest unit of an element that has a property of an element.

Answer 23

Atom

Question 24

is the smallest unit of compound. A group of atoms linked together by sharing electrons in a chemical bond. It can also participate in a chemical reaction.

Answer 24

Moleule

Question 25

is very small compared with the rest of the atoms and it contains most of the atomic mass.

Answer 25

Nucleus

Question 26

carries the negative charged ion.

Answer 26

Electron

Question 27

carries the positive charged ion.

Answer 27

Proton

Question 28

has the same mass as proton but with no electric charge.

Answer 28

Neutron

Question 29

total number of protons and neutrons in a nucleus.

Answer 29

Mass Number

Question 30

equals to the number of protons in an atom.

Answer 30

Atomic Number

Question 31

atoms have the same elements and have the same number of protons but have different numbers of neutrons or masses.

Answer 31

Isotopes

Question 32

the average weight (mass) of an atom of an element, taking into account the masses of all its isotopes and the percentage of the occurence in nature.

Answer 32

Atomic Weight

Question 33

substances made up of different compounds.

Answer 33

Mixtures

Question 34

singular identifiable characteristic.

Answer 34

Homogenous

Question 35

multiple identifiable characteristic.

Answer 35

Heterogenous

Question 36

substances with fixed chemical composition.

Answer 36

Pure Substances