1. Draw and label a model of Tungsten (W) Decode Sulfuric Acid: H2SO4
Is Sulfuric Acid an element, compound, or mixture? Explain.
Is Tungsten an element, compound, or mixture? Explain
Tungsten Electron Configuration: 1s2 2s2   2p6 3s2   3p6   3d10 4s2   4p6   4d10   4f14 5s2   5p6   5d4 6s2

2. Your goals You should be able to:
Identify a compound as acid or alkaline
Describe the difference between a positively charged ion and a negatively charged ion
Describe the difference between an acid and an alkaline solution
Explain the difference between an acid and an alkaline solution

3. Vocabulary
acid
alkaline
base
neutral
ion

4. Acids and bases

5. Characteristics of Bases
of Acids
Characteristics of Bases
Taste sour (citrus fruit)
Reacts with metals
Causes pH paper to turn red or orange
SbF5 + HF Superacid Fluoroantimonic acid
(pH = -31)
Feel slippery
Taste bitter
Turns pH paper blue or green
Lithium Diisopropylamide (CH3)2CH]2NLi  pH = 22

6. Examples of Acids Examples of bases
HClO4 perchloric acid
HI hydroiodic acid
HBr hydrobromic acid
HCl hydrochloric acid
HNO3 nitric acid
H2SO4 sulfuric acid
HClO3 chloric acid
CH3COOH acetic acid
HCOOH formic acid
HF hydrofluoric acid
LiOH lithium hydroxide
NaOH sodium hydroxide
KOH potassium hydroxide
Ca(OH)2 calcium hydroxide
RbOH rubidium hydroxide
Sr(OH)2 strontium hydroxide
CsOH cesium hydroxide
Ba(OH)2 barium hydroxide

7. ION – an element that has lost or gained electrons
What would a positiveley charged carbon ion look like?
What would a negatively charged carbon ion look like?

8. What are they? (Arrhenius, 1887)
Acids
Alkalines
acids give off (H+) into water
Have excess hydrogen ions
Acids are like wet sponges –
when you squeeze the wet sponge the liquid comes out
When you put an acid in water H+ are released.
Bases take H+ from water
Bases are like dry sponges
when you put water on a dry sponge, it soaks water up.
When you put an alkaline into water it absorbs H+