What are alkalis?Edit
An alkali is a compound which can make glass and convert oils and fats into soap.
They can be made into colour dyes to change the colour of clothes.
Alkails are shown on the pH scale as any number that is between 7 -14.
A strong alkali can get rid of colours and burn skin like acid.
What is the difference between acids and alkalis?Edit
Acids are shown on the pH scale as any number that is between 1-6.
Alkalis are shown on the pH scale as any number that is between 8-14
Stronger acids have lower numbers on the pH scale, whilst stronger alkalis have higher numbers on the pH scale.
Acids are foods like ketchup, vinegar and sparkily water.
Alkalis are products like washing up liquid, toothpaste bleach and bicarbonate soda.