1. to make less concentrated

2. a substance that can donate an electron pair

3. A covalent bond in which a pair of electron is shared between two atoms

4. the study of hydrocorbons and their activities

5. corbon dioxyde in solid farm

6. a positively charged part of atom or group of atoms

7. chemical kinetics

8. tronsformation of a gas into liquid

9. having both acidic and basic chrectristics

10. a substance that can accept an electron pair

11. Latin for water

12. a cyclic hydrocorbon which is non aromatic

13. a formulla which defines the bonding and arrengement of atoms present in compund

14. STP

15. the opposite side for refference plan