Gen Chem

Question 1

Ionic Compound

Answer 1

Metal (cation) + Nonmetal (anion)

Question 2

Molecular Compound

Answer 2

2 or more nonmetals

Question 3

Empirical Formula

Answer 3

Simplest whole # ratio

C6H6 –> CH

Question 4

Molecular Formula

Answer 4

Exact # of each atom found in a compound

Question 5

Structural Formula

Answer 5

Exact # of atoms and manner in which they are bound

Question 6

Ionic Compound Naming

Answer 6

Name of cation + anion base plus (-ide)

Question 7

Molecular Compound Naming

Answer 7

Prefix (di, tri, ect) name of 1st element + prefix base name of 2nd element with -ide ending

Question 8

Ionic Bond

Answer 8

Electrons transferred

Question 9

Covalent Bond

Answer 9

Electrons shared

-Polar covalent: Unequal sharing
-Nonpolar covalent: Equal sharing

Question 10

Octet Rule Exceptions

Answer 10

1. Hydrogen –> 2 electrons
2. Boron –> 6 electrons
3. Aluminum –> 6 electrons
4. Expanded Octet
   - Period 3 of higher (related to d- orbitals)
   - Ones he gave in class: P, S, Br, Cl, I, Kr, Xe

Question 11

Condensation

Answer 11

gas to liquid

Question 12

Deposition

Answer 12

gas to solid

Question 13

Sublimation

Answer 13

solid to gas (dry ice)

Question 14

Physical Property

Answer 14

Property displayed by a substance that does not change its composition
-melting point, boiling point, color, taste, appearance, odor, freezing point

Question 15

Chemical Property

Answer 15

Property displayed by a substance that does change its composition
-corrosiveness, flammability, acidity, toxicity

Question 16

Homogenous Mixture

Answer 16

Mixture with uniform composition
ex) Apple juice

Question 17

Heterogenous Mixture

Answer 17

Mixture not uniform in composition
ex) Salad dressing, smog

Question 18

Mixture

Answer 18

Matter consisting of 2 or more pure substances that can be separated by physical means

Question 19

Diatomic Elements

Answer 19

H2, N2, O2, Cl2, Br2, I2

Question 20

Core Electron

Answer 20

Innermost electrons that occupy lowest energy levels
-Not involved in chemical bonding
-tightly bound

Question 21

Valence Electron

Answer 21

Outermost electrons, occupy highest energy levels
-Involved in chemical bonding
-not as tightly bound

Question 22

Physical Change

Answer 22

Change that alters state or appearance, but not composition
-Atoms don’t change identity

Question 23

Chemical Change

Answer 23

Change that alters composition

-Atoms rearrange, creates different substance

Question 24

Metals with only 1 charge

Answer 24

Group 1, Group 2, Sc (3+), Ag (+), Zn (2+), Al (3+)

Question 25

Metals with multiple charges

Answer 25

Most of the transition metals plus Sn and Pb

Question 26

Calculate Cation Charge

Answer 26