Basic chemistry help for students and teachers


Interactive Chemistry Worksheets for Students


Periodic table

Naming compounds

Basic formula

Simple compounds

Ionic compounds 1

Ionic compounds 2

Chemical suffixes

Old chemical names

Hydrocarbons - Alkanes

Alkanes, alkenes & alkynes

Alkanols to alkanoic acids


Common compounds

Common formula quiz

Acids, bases and salts

Covalent compounds

Printable worksheets


There are many different types of acids. Acids taste sour, turn blue litmus paper pink and have a pH of less 7.

Some acids are very corrosive like sulfuric acid, nitric acid and hydrochloric acid. These acids can cause damage to the skin, eyes and clothing. They also vigorously react with active metals such as magnesium, zinc and iron producing hydrogen gas and salts

Some acids are very weak like the organic food acids. Acetic acid or vinegar, citric acid and malonic acid are all used in cooking. Lactic acid is found in yogurt and sour cream.

Some common acids are their uses.

Name of acid Chemical formula of acid Uses of acid
Sulfuric acid H2SO4 Used in car batteries
Hydrochloric acid HCl Also called muriatic acid. Used to lower the pH of swimming pools and to clean the cement off bricks. Found naturally in the stomach.
Nitric acid HNO3 Used to make ammonium nitrate fertilizer. Also used to make explosives like trinitrotoluene (TNT) and nitroglycerine which is the explosive ingredient in dynamite.
Acetic acid or vinegar CH3COOH Used in cooking and as a condiment for flavor.

Citric acid or

2-hydroxypropane-1,2,3-tricarboxylic acid

citric-acid Found in citrus fruits like lemons and oranges. Used in cooking and as a food flavoring ingredient.