Across
- 4. Limestone is combined with hydrochloric acid or sodium chloride to produce ________
- 5. a process of free moving of gaseous or solutes molecules of a solution come close and attach themselves onto surface of solid
- 6. precursor for developing renewable and sustainable materials for water purification
Down
- 1. can be used as an adsorbent for numerous pollutants adsorption owing to its main characteristic, being a porous material.
- 2. A form of brown seaweed called kelp that grows naturally in the ocean is used to make _______
- 3. a commonly mined rock that is used to make calcium chloride