Chemistry

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1

Slide 1

Reaction Types

Nuclear

Chemical

Physical

Protons

&

Neutrons

change

Bonds

made/ broken

Electrons exchanged

No change in atoms

phase change

Density

Substances can be identified by their properties.

Slide 2

Chemical

Reaction Types

Bonds are made / broken

Change in oxidation states

P+1

P+1

2

1

Li

+1

Slide 3

Chemical Bonds

Strong <----------------> Weak

Slide 4

Cation

an ion with a positive charge.

Anion

an ion with a Negative charge.

A

I

O

N

+

-

Slide 5

Ionic bond

Li F

2

1

2

1

Slide 6

Li F

Ionic bond

2

1

2

1

Slide 7

Li+1 F-1

Ionic bond

2

1

2

1

The attraction between a cation and an anion.

Slide 8

Cations

H+ Hydrogen

Na+ Sodium

Mg+2 Magnesium

Ca+2 Calcium

Ag+1 Silver

Slide 9

Fe+2 Iron (II) Ferrous

Fe+3 Iron (III) Ferric

Cu+1 Copper (I) Cuprous

Cu+2 Copper (II) Cupric

NH4+ Ammonium

mo’ Cations

Slide 10

Anions

F-1 Fluoride

Cl-1 Chloride

Br-1 Bromide

I-1 Iodide

The Halogens

Slide 11

PO4-3 Phosphate

SiO4-2 Silicate

SO4-2 Sulfate

MoO4-3 Molybdate

B4O7-2 Borate

Anions

OH-1 Hydroxide

NO2-1 Nitrite

NO3-1 Nitrate

Slide 12

SALT - a Cation and an Anion held together by an ionic bond.

opposites attract

Slide 13

An engineer searching for a material to develop a new kind of “indestructible” eyeglass frame would desire what characteristics?

High hardness, high elasticity, high brittleness.

Low elasticity, high brittleness.

Low brittleness, high hardness, high elasticity.

High brittleness, low hardness, low elasticity.