Hard Water

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Leaderboard

Created by

Eddie

Cards (6)

What ions cause hard water?
Dissolved calcium and magnesium ions
What causes temporary hard water?
Magnesium and calcium hydrogencarbonate
What causes permanent hard water?
Magnesium and calcium sulfate
What happens in an ion exchange column?
Each calcium or magnesium ion is exchanged for two sodium ions
What are the advantages of water hardness?
Strengthens teeth and bones
Lowers risk of heart disease
Improves brewing and baking
Better taste
What are the disadvantages of water hardness?
Forms limescale
Furs up pipes
Reduces efficiency of appliances
Wastes soap

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Hard Water

Cards (6)

Unit 5: The Water Cycle and Water Insecurity

Unit 1: Chemistry of Life

2.2.1 Water

3.2.1.2 Water

1.3 Water

1.3.3 Water Purification

5.2 Water Insecurity

1.8 Water

1.1. The Water Cycle

C6.2 Organic Chemistry

WJEC GCSE Chemistry

4.3 Water Security

Unit 5: Land and Water Use

2.2.1 Water Resources

3. Quantitative chemistry

C6.1.2 Green Chemistry

1.3. Water, Carbon, and Climate

7.2.3 The Water Cycle

AQA A-Level Chemistry

4.1.2 Water Pollution

5.1 The Water Cycle