Acids Revision

Where are acids on the ph scale?
1. Solutions with a pH less than 7 are acidic
2. <---
Common acids
Acid symbols
1. 1. New
  2. Old
Neutralization
1. A chemical reaction happens if you mix together an acid and a base. The reaction is called neutralisation, and a neutral solution is made if you add just the right amount of acid and base together
2. Reasons for neutralization
  1. Farmers use lime (calcium oxide) to neutralise acid soils.
  2. Your stomach contains hydrochloric acid, and too much of this causes indigestion. Antacid tablets contain bases such as magnesium hydroxide and magnesium carbonate to neutralise the extra acid.
  3. Bee stings are acidic. They can be neutralised using baking powder, which contains sodium hydrogen carbonate.
Reacting with metals
1. Acids react with most metals and a salt is produced. But unlike the reaction between acids and bases we don't get any water. Instead we get hydrogen gas.

Resource summary

	Created by HarveyHancock99 about 11 years ago