Acids and alkalis

• neutralisation is when you bring the pH of an acid or alkalis to 7 making it neutral
• strong acids are hydrochloric, sulfuric, nitric, phosphoric, carbonic
• weak acids are citric, lactic, oxalic, tartaric, formic
• Antacid - a medicine that relieves heartburn by neutralizing stomach acid
• pH scale - a scale used to measure the acidity or alkalinity of a solution
• Hydrochloric acid + sodium hydroxide = sodium chloride + water
• Formula of sulphuric acid - H2SO4
• Formula of water - H2O
• Indicator - A substance that changes colour when a solution contains a certain substance.
• Acid - A substance that donates hydrogen ions (H+)
• Alkalis - a chemical which contains hydroxide ion
• Acids neutralise alkalis