1. Hardness is the resistance to what?
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Other questions in this quiz
2. The Leblanc process produces this
- Calcium sulphate
- Sodium carbonate
- Calcium carbonate
- Sodium chloride
3. Ceramics include clay, glass and what?
4. In the process of 'wet scrubbing,' waste gases are sprayed with water and what?
- Calcium suplhate
- Calcium oxide
- Calcium Carbonate
5. Thermoplastics like acrylic do what when heated?