Introduction to Acids and Alkalis
Acids are liquids which are solutions of compounds in water. For example,
hydroelectric acid is a solution of hydrogen chloride.They have a lot of
hydrogen ions (H+) in them. Strong acids, or highly concentrated acids,
can be corrosive because they’re so reactive, so they must be handled with
care. Alkalis are the solutions of bases, such as sodiu hydroxide. A lot of
bases are insoluble, therefore, they cannot be alkalis, BUT all alkalis can
They contain hydroxide ions (OH-). Like acids, they can also be corrosive
if they’re concentrated, so they must also be handled with care. While acids
and alkalis can be dangerous, they can also be very helpful in our daily lives,
if used correctly.
For example, you might not know that you’ve been sprinkling ethanoic acid
over your fish and chips! ( Ethanoic acid is the chemical name for vinegar ).
Lots of alkalis are used in household cleaning products, like bleach and
Fruits and vegetables also have natural acids in them – especially citric fruit,
like lemons and oranges.