Across
- 3. The _________ number or state as the charge of an element in a compound if electron transfer occurs in an atom to form a chemical bond with another atom
- 5. The electrode where the reduction reaction takes place in electrolytic cell
- 7. Substance agent that is oxidised in a redox reaction with other substances
- 8. Shorthand cell ________ representation of a chemical cell with the anode on the left and the cathode on the right is separated by two vertical lines representing a salt bridge or porous pot
- 11. Substance agent that is reduced in a redox reaction with other substances
- 12. Reaction that takes place when a reactant gains oxygen, loses hydrogen, loses electron and reduced oxidation number
- 13. Redox reaction in which there is an oxidation process of iron to hydrated iron(III)oxide, Fe2O3.xH2O
- 14. Reaction that takes place when a reactant loses oxygen, gains hydrogen, gains electron and increased oxidation number
- 15. Process of decomposition of a compound in a molten state or an aqueous solution to its constituent elements when electric current is passed through it
Down
- 1. The electrode terminal where the voltaic cell redox reaction takes place in anode
- 2. Electrode _________ is the _________ (voltage) produced when equilibrium is established between metal M & the aqueous solution containing metal M ions in a half-cell
- 4. The electrode where the oxidation reaction takes place in electrolytic cell
- 6. Substance agent that is reduced in a redox reaction with other substances
- 7. Substance agent that is oxidised in a redox reaction with other substances
- 9. Potential difference produced in half-cells under conditions with a concentration of ion in an aqueous solution (1.0 moldm-3) at 25 degrees celcius/298K, 1 atm pressure/101 kPa & coupled with ________ hydrogen electrode of platinum as inert electrode when half-cell is not a metal electrode
- 10. The electrode terminal where the voltaic cell redox reaction takes place in cathode
- 13. Chemical reactions that involve oxidation & reduction that occur simultaneously
