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ok itz defi sodium 4 da 1stbut guyz 4 da 2nd...itz 'b'.....itz using copper electrodes wich r active electrodes.......im sure u hv don't da purification of copper using electrolysis...itz da same thngn 3rd.....im not sure but i thnk itz sodium bcuz itz an alkali wich forms white compounds....plz nid or any1...correct me if im wrong.....thnku
PPL.......Lead Oxide is yellow!!if it was Iron Oxide then it wont be yellow.......it would be green or reddish brown depend on the valency of iron
hey guys id appreciate some help.may june 03 q21water is added to dilute H2SO4 of pH4.What is the resulting pH?the answer is 6,but why?i know it has something to do with the hydroxide or hydrogen ions in water which change its pH....
Quote from: mizuki on June 11, 2009, 12:14:51 pmhey guys id appreciate some help.may june 03 q21water is added to dilute H2SO4 of pH4.What is the resulting pH?the answer is 6,but why?i know it has something to do with the hydroxide or hydrogen ions in water which change its pH....LOW PH+high PH=neutralhigh ph+ high ph= alkalinelow ph+ low ph= acidic in this case a low ph and a neutral would give u weak acidic onlyfurther xplanation of the results of neutralisation i think is nt needed!NOW I GOT A QUESTION: NOV08 Q13: y is it B not A??
i need help in this question < Three reactions used in the manufacture of sulphuric acid are shown.1 S + O2 ? SO22 2SO2 + O2 ? 2SO33 SO3 + H2O ? H2SO4Which of these reactions are redox reactions?A 1 onlyB 3 onlyC 1 and 2 onlyD 2 and 3 only
thanks for your help everyone.to answer your Q,sweetest angel,its because if it were in solution,the hydrogen would be liberated in preference to lead.