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A-level Chemistry Exam Questions with Detailed Answers Merged. 100% Verified
▪ In the periodic table, element X is in group 2 and element Y is in group 5. what is the likely formula of the ionic compound of X and Y - Ans .X3Y2 ▪ which enthalpy changes are endothermic - Ans .the bond enthalpy of a C-H bond and the second electron affinity of oxygen ▪ explain why ...
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