Chemistry (Rare)

Question 1

Absolute Zero

Answer 1

Theoretical temperature, the coldest possible

Question 2

Acid

Answer 2

Something that reacts with a base, with a pH of less than 7

Question 3

Activation energy

Answer 3

Energy that must be overcome for a chemical reaction to occur.

Question 4

Aeration

Answer 4

Process in which air is mixed with liquid

Question 5

Anion

Answer 5

Negatively charged ion

Question 6

Atom

Answer 6

Smallest form of a chemical element, made of protons, neutrons, and electrons

Question 7

Atomic Number

Answer 7

Number of protons in the nucleus of an atom

Question 8

Barometer

Answer 8

Device used to measure atmospheric pressure

Question 9

Base

Answer 9

Something that reacts with an acid, with a pH of more than 7

Question 10

Biochemistry

Answer 10

Study of chemical processes in life forms

Question 11

Boiling

Answer 11

Phase of a liquid rapidly vaporizing

Question 12

Bond

Answer 12

Attraction between atoms that allows chemicals to form

Question 13

Catalyst

Answer 13

Substance that changes the rate of reaction

Question 14

Cation

Answer 14

Positively charged ion

Question 15

Centrifuge

Answer 15

Device that uses rotation to separate substances

Question 16

Chemical reaction

Answer 16

Process that changes one chemical substance to another

Question 17

Colloid

Answer 17

Mixed substance that are evenly dispersed

Question 18

Combustion

Answer 18

Burning with fuel, heat, oxygen

Question 19

Compound

Answer 19

Pure substance with at least two chemical elements

Question 20

Condensation

Answer 20

Change from a gas to a liquid

Question 21

Conductor

Answer 21

Material that allows electricity to flow

Question 22

Deposition

Answer 22

Settling of particles in a solution

Question 23

Electrolyte

Answer 23

Electrically Conductive substances

Question 24

Electron

Answer 24

Elementary particle with no charge

Question 25

Entropy

Answer 25

Even distribution of a system

Question 26

Freezing

Answer 26

Phase transition of a liquid to a solid

Question 27

Frequency

Answer 27

Number of events per unit of time

Question 28

Gas

Answer 28

State of matter in which particles have no definite volume

Question 29

Geochemistry

Answer 29

Chemistry of the Earth's composition

Question 30

Indicator

Answer 30

Compound added to a solution that changes color depending on acidity

Question 31

Inorganic Compound

Answer 31

Non biological, or lacking carbon and hydrogen

Question 32

Insulator

Answer 32

Material that resists the flow of electricity

Question 33

Ion

Answer 33

Atom that has gained or lost an electron

Question 34

Ionization

Answer 34

Process of converting an atom into an ion

Question 35

Kinetics

Answer 35

Study of the rates of chemical processes

Question 36

Lattice

Answer 36

Arrangement of atoms or molecules in a crystal

Question 37

Liquid

Answer 37

State of matter that has a fixed volume but not shape

Question 38

Melting

Answer 38

Phase change from a solid to a liquid

Question 39

Mole

Answer 39

Measurement that contains 6.02x10^23 units

Question 40

Molecule

Answer 40

Neutral group of atoms held together by bonds

Question 41

Neutron

Answer 41

Neutral part of an atoms nucleus

Question 42

Nucleus

Answer 42

Center of an atom, made of protons and electrons

Question 43

Organic Chemistry

Answer 43

Chemistry of carbon based componds

Question 44

pH

Answer 44

Measure of acidity of a solution

Question 45

Plasma

Answer 45

State of matter similar to a gas, in which some particles are ionized

Question 46

Precipitate

Answer 46

Formation of a solid in a solution

Question 47

Proton

Answer 47

Positive part of an atoms nucleus

Question 48

Quark

Answer 48

Elementary particle of matter

Question 49

Reagent

Answer 49

Substance that is added to a system to get a reaction

Question 50

Sol

Answer 50

Suspension of solids in a liquid

Question 51

Solid

Answer 51

State of matter in which molecules resist movement

Question 52

Solute

Answer 52

The part of the solution that is put into the solvent

Question 53

Solvent

Answer 53

The part of the solution that dissolves the solute

Question 54

Sublimation

Answer 54

Phase transition from a solid to a gas

Question 55

Triple Point

Answer 55

Temperature and pressure at which three states of matter exist simultaneously

Question 56

Valence Electron

Answer 56

Outermost electrons of an atom

Question 57

Vaporization

Answer 57

Phase change from a liquid to a gas

Question 58

Viscosity

Answer 58

Measure of resistance of fluid, or thickness

Question 59

Yield

Answer 59

Amount of a product made in a chemical reaction