Chemistry Elements from the sea 1.0 / 5 based on 1 rating ? ChemistryUnit 3ASOCR Created by: ChloesnCreated on: 06-03-14 18:20 682473159 Across 1. Negative ions containing oxygen. (8) 4. In group 7, fluorine, chlorine, bromine, iodine (8) 5. Oxidation is loss (of electrons) Reduction is gain (of electrons). (6) 6. A solid. Ions in solution behave independently, if two react to form a solid a precipitation reaction is said to have occurred. (11) 7. occurs when a molecule (or part) has a positive end and a negative end. (6) 9. the condition of being dissociated into ions (as by heat or radiation or chemical reaction or electrical discharge). an input of energy is always needed to remove electrons because they are attracted to the nucleus. (10) Down 2. (Web definition the tendency of an atom or radical to attract electrons in the formation of an ionic bond). Each atoms attraction for bonding electrons - it’s ‘electron pulling power’. (17) 3. Loses electrons so it is + and overall its change will go up. (9) 4. The process of combining with water; usually reversible, adding water. (9) 8. Chemical decomposition produced by passing an electric current through a liquid or solution containing ions. (12)
Comments
No comments have yet been made