Across
- 3. method for water treatment
- 7. the hexadentate ligand is
- 8. the reaction occurs due to anion exchange
- 9. whose apperence is hard,tough,and strong
- 12. the method is used to obtain pure water by using cation exchange
Down
- 1. what is the essiential for the existrnce of human being
- 2. whose appperence is soft ,loose and slimy
- 4. which chemistry produce hazardous substances
- 5. The reaction which remove salts and ions from sea water
- 6. what is used to remove impurities from water
- 10. chemistry is a renewable source
- 11. sludges have nature