Acids and Alkalis
- Created by: hannahbidgood
- Created on: 23-04-15 14:15
View mindmap
- Acids and Alkalis
- PH scale
- Goes from 0-14
- 0-6 is acidic with 0 being the strongest
- 8-14 is an alkali with 14 being the strongest
- 7 is a neutral substance e.g. water
- Neutralisers
- Acids --From H+ ions in water
- Base
- A substance with 7+ PH
- Alkali is a base dissolves in water
- Alkali's form OH- ions in water
- Acids reacting with metals
- Acid + Metal = Salt + Hydrogen
- The more reactive a metal is, the faster the reaction.
- The speed of reaction is shown by the rate of hydrogen bubbles
- Hydrogen is confirmed by the splint test - With a squeaky pop
- Salts producted
- Hydrochloric acid produces chloride salts
- Sulfuric acid produces sulfate salts
- Nitric acid produces nitrate salts
- Oxides and Hydroxide
- Metal Oxides and Hydroxides are Bases
- Acid + Metal Oxide/ Hydroxide = Salt + Water
- Combination of metal and acid decides salt
- Ammonia
- Can be neutralised with Nitric acid to make fertiliser
- Fertiliser is Ammonium Nitrate
- NH3 + HNO3 = NH4NO3
- Making Salts
- Soluble salts
- Using metal or an insoluble base
- Using alkali
- Insoluble salts
- Precipitation reactions
- Soluble salts
- PH scale
Comments
No comments have yet been made