Everday Acids

Hydrochloric acid - In your Stomach
Citric acid - In fruit
sulfuric acid - car batteries
acetic acids - Vinegar
Lactic acids - Sour milk
Formic acid - ant bite

Everyday Alkalis

Oven cleaners, washing up liquids and soaps
Alkalis remove & dissolve grease
Alkalis have a soapy feel because they dissolve the grease on your skin.
Indigestion medicines