Chemistry Unit 2 Definitions 0.0 / 5 ? ChemistrydefinitionsASAQA Created by: hannahcolemanCreated on: 22-03-14 17:30 29610734158 Across 1. molecules with at least one carbon-carbon double or triple covalent bond (11) 5. used for reactions that involve both oxidation and reduction. (5) 6. the loss of heat from a system; enthalpy change is negative (10) 8. different structural modifications of an element (9) 9. the amount of heat energy released or absorbed when a chemical or physical change occours at a constant pressure (8, 6) Down 2. the point at which in a reversible reaction, both the forward and backwards reactions happen at the same rate, with the concentration of al products and reactants remaining constant. (8, 11) 3. the process of electron gain (9) 4. the enthalpy change of a reaction depends on the initial and final states of the reaction and is independent of the route by which the reaction occours (5, 3) 7. the gain of heat by a system; enthalpy change is positive (11) 10. the process of electron loss (9)
Comments
No comments have yet been made