Study guides, Class notes & Summaries

How to test for C=C decolourises bromine water Atomic Number number of protons in the nucleus of an atom of that element. Mass Number the sum of protons and neutrons in a nuclues of an atom Isotopes atoms of the same elementwith the same numberof protons but different nuber of neutrons Relative Atomic Mass the average mass of an atom of an element compared to a twelfth of the mass of an atom of carbon-12. Relative Isotopic Mass The mass of an atom of an isotope compared to one-twelfth of th...

Silver nitrate+ nitric acid + chloride ions White precipitate Silver nitrate+ nitric acid + bromide ions Cream precipitate Silver nitrate+ nitric acid + iodide ions Yellow precipitate Substances that decolorise bromine water Alkenes Electrophiles Electron pair acceptors, attracted to electrons e.g H+ NaF and NaCl Produces misty fumes with conc sulphuric acid NaBr Produces misty and orange/brown fumes with conc sulphuric acid NaI Produces misty fumes, purple vapour, bad egg smell with conc...

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