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Varda said in O Level Chemistry: Mole Calculations – Balanced Chemical & Ionic Equations: a)CuO+H2SO4–>CuSO4+H20(already balanced) b)Cu(2+)+O(2-)+2H(1+)+SO4(2-)–> Cu(2+)+SO4(2-)+H20 Therefore,the ionic equation is: 2H(1+) + O(2-)–>H20 The spectator ions… …
jose said in O Levels Chemistry: Secrets of SPA / Chemistry Practicals: Heii.do you hev any idea about practical involving heat of… …
sadia said in O Level Chemistry: Particulate Nature of Matter / Kinetic Particle Theory: ans of 1 is D because both have same relative… …
sadia said in O Level Chemistry – Isotopes: hi i emailed you a question and got no reply… …
Sarah said in Chemistry Questions – Mole Calculations: hello sir, i have a simple chemistry question… …
sadia said in O Levels Chemistry Tips Blog Marathon – Day 5: ans of 1 is C and 2 is A… …
sadia said in O Levels Chemistry Tips Blog Marathon – Day 4: you are doing a good job.well done keep it up.plz… …

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