checkpoint

Question 1

Naming Ionic

Answer 1

-Transition metals have roman numerals.
-Just balance
-Starts with cation and ends with anion.

Question 2

Naming Covalent

Answer 2

Molecular(Covalent):
-Mono-di-tri-tetra-penta-hexa-hepta-octa-nona-deca
-Two non-metals

Question 3

Naming Acids

Answer 3

-3 elements (with oxygen) no hydro
-ite-ous
-ate-ic acid
-2 chemicals start with hydro and ends with ic acid

Question 4

Naming Organic

Answer 4

meth-eth-prop-but
-CnH2N+2 Ane
-CnH2N Ene
-CnH2-2 Yne
CnH2+1 OH Alcohol

Question 5

IMF

Answer 5

-Attractions between two or more molecules of solids and liquids but can sometimes be gases
-Determines all physical characteristics of a molecule.

Question 6

LDF

Answer 6

-All molecules with electrons has this
-Temporary interactions between molecules due to clumping/dispersion of electrons on one side of an atom or molecule . This creates a polar-like molecule and can quickly interact with another mol or atom.
-Only type of interactions Noble gasses can have with each other and other atoms.

Question 7

Dipole Dipole (Polar molecules Only)

Answer 7

-Attraction occurs between two opposite charged parts of two polar molecules.
-Dipole: Two poles of a singular molecule

Question 8

Hydrogen Bonding

Answer 8

-Only occurs when bonded to Fluorine, Nitrogen, or oxygen
-The more Hydrogen present the higher boiling pt.
-Represented by dotted lines Increase your melting point and boiling point

Question 9

Ion Dipole

Answer 9

-Water molecules will create a sphere
of solvation around the ions of an also increases boiling and melting points
ionic compound
-The δ+ side of a water molecule will be
attracted to and face a negative ion
-The δ- side of a water molecule will be
attracted to and face the positive ion

Question 10

Boiling Point

Answer 10

Increases with Hydrogen Bonding, dipole-dipole, and ionic bonds.

Question 11

Melting Point

Answer 11

Increases with Ionic Bonds, while non polar covalent bonds have lower melting points

Question 12

Bond Shapes

Answer 12

Linear 180°
Trigonal Planar and Bent (< with lone pair) 120°
Tetrahedral 109.5°
Trigonal Pyramidal 107°

Question 13

Moles to Grams

Answer 13

How many grams of Fluorine do you have when given 8.5 moles of F gas?
1 mole of F = 19.00 grams of F
8.5 moles of F x 19.00 g of F = 161.5 grams of F
1 mole of F
using significant figures, it becomes 160 g of F

Question 14

Grams to Moles

Answer 14

How many moles of Carbon do you have when given 54.0 grams of C?
1 mole of C = 12.0 grams of C
54.0 grams of C x 1 mole of C = 4.50 moles of C
12.0 g of C
Molecules to grams:
How many grams of Na solid do you have when given 3.01 x10 23 atoms of Na?
1 mole of Na = 23.00 grams of Na
1 mole of Na = 6.022 x 10 23 atoms of Na
3.01 x10 23 atoms of Na x 1 mole of Na x 23.00 grams of Na = 11.496 g of Na
6.022 x 10 23 atoms of Na 1 mole of Na
*using significant figures, it becomes 11. 5 g of Na

Question 15

Grams to Molecules

Answer 15

How many particles of O 2 gas do you have when given 1.25 grams of O 2 ?
1 mole of O 2 = 32.00 grams of O 2 ( 16.00 x 2)
1 mole of O 2 = 6.022 x 10 23 particles of O 2
1.25 g of O 2 x 1 mole of O 2 x 6.022 x 10 23 particles of O 2 = 2.352 x 10 22 particles of O 2
32.00 g of O 2 1 mole of O 2

Question 16

Ionic Bond

Answer 16

Bond between non metal and metal. Transfers electrons

Question 17

Covalent Bond

Answer 17

Bond between non metals. Shares electrons.

Question 18

Polar molecule (Covalent Only)

Answer 18

When a molecule has positive and negative sides it is polar.

Question 19

Non Polar (Covalent Only)

Answer 19

When a molecule is equally sharing electrons and is neutral it is non polar.

Question 20

Metallic Bond

Answer 20

Bond between metals. Shares free electrons.