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

2. the study of hydrocorbons and their activities

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

4. a substance that can accept an electron pair

5. to make less concentrated

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

7. chemical kinetics

8. a substance that can donate an electron pair

9. Latin for water

10. a cyclic hydrocorbon which is non aromatic

11. corbon dioxyde in solid farm

12. STP

13. having both acidic and basic chrectristics

14. the opposite side for refference plan

15. tronsformation of a gas into liquid