Salters Ocr B Chemistry El Already Passed

Nuclear fusion {Ans: -2 nuclei fuse together to make a heavier molecule -happens in the sun and other stars -needs VERY HIGH TEMPERATURES AND PRESSURES to overcome repulsive forces. E.g. H+H -> He}number of particles= {Ans: Avogadro's number x number of moles}test for ammonium compounds {Ans: -add sodium hydroxide -gently heat, ammonia gas should be produced -the gas will turn damp red litmus paper blue}how to convert from cm^3 to dm^3 {Ans: divide by 1000}Diamond {Ans: -giant covalent structure -each carbon is bonded to four other carbon atoms -high melting point -doesn't conduct electricity -insoluble -very hard}solubility of carbonates {Ans: Potassium Ammonium Lithium Sodium are soluble, think: PALS Most carbonates aren't soluble -copper carbonate is blue/green -silver carbonate is yellow -most other carbonates are white}