C3- softening water

Lily O'Brien
Mind Map by Lily O'Brien, updated more than 1 year ago
1
0
0

Description

GCSE Chemistry (C3) Mind Map on C3- softening water, created by Lily O'Brien on 03/26/2017.

Resource summary

C3- softening water
1 Both types of water (temporary and hard) can be softened by adding washing soda (sodium carbonate)
1.1 The added carbonate ions react with CA,MG ions to make an insoluable precipitate of calcium carbonate and magnesium carbonate. The ions are no longer dissolved so cant make the water hard
2 Both types of hardness can also be removed by running water through ion exchange columns.
2.1 These are sold in shops and have lots of Na or H ions and exchange them for calcium or magnesium ions
3 Temporary hard water is removed by boiling
3.1 When heated, the calcium hydrogencarbonate decomposes to form calcium carbonate which is insoluable.
3.1.1 The solid is the limescale on your kettle.
Show full summary Hide full summary

Suggestions

GCSE - AQA: C1.1 The Fundamental Ideas in Chemistry
Olly Okeniyi
GCSE AQA Chemistry 1 Fuels & The Environment
Lilac Potato
Chemistry 6 Extracting Vegetable Oil Core GCSE AQA
Chloe Roberts
GCSE AQA Chemistry 2 Salts & Electrolysis
Lilac Potato
Crude Oils and others quiz
Dale George
Tests for Positive Ions: Flame Test Colours
bella.mort
GCSE Biology AQA
isabellabeaumont
AQA Biology 8.1 structure of DNA
Charlotte Hewson
Ionic Bondic Flashcards.
anjumn10
Chemistry General Quiz - 2
lauren_johncock
Chemistry Quiz General -3
lauren_johncock