What is Acid?

Names of Acid
Hydrochloric Acid
Sulfuric Acid
Nitric Acid
Phosphoric Acid
Acetic Acid
Citric Acid
Formic Acid
Tartaric Acid 

Formulae of Acids
HCl (L not I)
H₂SO₄
HNO₃
H₃PO₄
CH₃COOH

Formic Acid = The poison bee sting (The only way to get the Acid out is toothpaste, put Vinegar on Wasp Sting)

Where do you find Acid?
Plaque Acid on your Teeth (Toothpaste can help)
Stomach Acid (Hydrochloric Acid)
Battery Acid (Sulfuric Acid)
Lemon and Orange Acid (Citric Acid)
Vinegar (Acetic Acid)
Bee-String (Formic Acid)
Coca Cola (Carbonic Acid)

What is Acid?
An Acid is a chemical that contains Hydrogen Atoms that break off to react with different substance's.

Litmus Paper changes colour in Acid, Blue litmus paper changes to red, red litmus paper doesn't change in Acid, so if you put red litmus paper in acid it doesn't change.