1,HalogensinUnit7andelectrolysislaterin thisUnit. -1- IGCSEChemistry0620SchemeofWork 7.3(S)IdentifyredoxreactionsbychangesinDemonstrationscanincludethereactionof oxidationstateandbythecolourchangesethanolandacidifiedKMnO4toyieldethanoic involvedwhenusingacidifiedpotassiumacid(linktoUnit4-OrganicReactions1); ...
(London Examinations) GCSE Chemistry Specification. HOW TO GET THE MOST FROM THIS BOOK PRINCIPLES OF CHEMISTRY Atoms; Atomic structure; Relative molecular and formula masses; Chemical formulae and chemical equations; Ionic compounds; Covalent substances; Electrolysis; Metallic crystals CHEMISTRY OF THE ...
Th e main although the fi gure for nuclear energy has fallen in method of obtaining it on a large scale is by the electrolysis this time. In 2011, only 1.6% of energy came from of water. However, this is not very economical. It is possible solar power, wind power and wave power ...
2013年IGCSE化学考试真题11
13 The following electrolysis circuit is set up, using inert electrodes P, Q, R and S. P Q + + R S concentrated hydrochloric acid molten lead(II) bromide At which of the electrodes is a Group VII element produced? A P only B P and R C Q only D Q and S 14 When it is use...
IGCSE物理真题
化学IGCSE试卷
There are forty questions on this paper. Answer all questions. For each question there are four possibl e answers A , B , C and D .Choose the one you consider correct and record your choice in soft pencil on the separate Answer Sheet. Read the instructions on the Answer Sheet ...