Chapter 2

Question 1

Adhesion

Answer 1

Water Sticking to Other surfaces

Question 2

Anion

Answer 2

Negatively Charged Ion

Question 3

Atom

Answer 3

Smallest Chemical Unit of a Pure Substance

Question 4

Atomic Number

Answer 4

Number of Protons in an atom

Question 5

Atomic Weight

Answer 5

Average Weight of an all of an elements Isotopes

Question 6

Avogadro’s Number

Answer 6

Number of Molecules in 1 mole of an given substance, 6.02x10 to the 23

Question 7

cation

Answer 7

Positively Charged Ion

Question 8

chemical bond

Answer 8

Attractive forces that link atoms together

Question 9

chemical reaction

Answer 9

Occur when atoms collide with enough force to change their bonding partners

Question 10

cohesion

Answer 10

Water Sticking to itself

Question 11

compound

Answer 11

molecule with two or more elements

Question 12

electron

Answer 12

subatomic particle that carries a negative charge

Question 13

Covalent Bond

Answer 13

Sharing of electrons between atoms to fill valance shell

Question 14

electron shell

Answer 14

Energy level, made up of orbitals

Question 15

electronegativity

Answer 15

Attractive force that an atomic nucleus exerts on electrons

Question 16

energy

Answer 16

Ability to do work or change

Question 17

element

Answer 17

a pure substance containing one type of atom

Question 18

heat of vaporization

Answer 18

heat required to induce a liquid to gas phase change

Question 19

hydrophobic

Answer 19

Water Hating/Fearing

Question 20

hydrogen bond

Answer 20

The attraction between the slight negative end of a molecule and slight positive end of a hydrogen end of another molecule

Question 20

hydrocarbon

Answer 20

Chemical class that contain only hydrogen and carbon atoms

Question 21

hydrophilic

Answer 21

Water Loving

Question 21

ion

Answer 21

Charged particle

Question 21

isotope

Answer 21

Variations of a given element, isotopes have the same proton count but different neutron count

Question 22

ionic attraction

Answer 22

atoms with such difference in electronegativities than one another, that one will lose and gain an electron respectively, filling out the valence shells

Question 23

mass

Answer 23

measure of matter

Question 24

mass number

Answer 24

Protons + neutrons

Question 25

mole

Answer 25

Amount of a substance numerically equal to its molecular weight

Question 26

molecular weight

Answer 26

Sum of atomic weights in a molecule

Question 27

molecule

Answer 27

Stable association of atoms

Question 28

neutron

Answer 28

subatomic particle carrying a charge of 0, or neutral

Question 29

non-polar covalent bond

Answer 29

Relative even sharing of electrons

Question 30

nucleus

Answer 30

Center of an atom

Question 31

orbital

Answer 31

where the electron is located 90% of the time, each one holds 2 electrons

Question 32

Reduction

Answer 32

Gaining of electrons

Question 33

Oxidation

Answer 33

Lose of electrons

Question 34

Periodic Table

Answer 34

The way elements are categorized

Question 35

Polar Covalent Bond

Answer 35

Relative uneven sharing of electrons

Question 35

Radioactive Decay

Answer 35

can transform the atom via ionizing radiation

Question 36

products

Answer 36

things formed during chemical reaction

Question 37

proton

Answer 37

subatomic particle with positive charge

Question 38

Radioisotope

Answer 38

isotopes that give off energy in the form of alpha, beta, and delta radiation from the nuclues

Question 39

Reactant

Answer 39

The things initially present before a chemical reaction occurs

Question 40

Solute

Answer 40

The substance that is dissolved

Question 41

Solution

Answer 41

A substance dissolved in liquid

Question 41

Solvent

Answer 41

Liquid in which a substance is dissolved

Question 42

Van Der Waals Forces

Answer 42

Attractions between nonpolar molecules that are close together

Question 43

Valence Shell

Answer 43

Outermost shell of an atom