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  3. 1.Calculate the energy released by the reaction 4Fe(s)+3O2(g)-------2Fe2O3(s)when a 55.8g sample of iron reacts completely...

1.Calculate the energy released by the reaction 4Fe(s)+3O2(g)-------2Fe2O3(s)when a 55.8g sample of iron reacts completely...

1.Calculate the energy released by the reaction 4Fe(s)+3O2(g)-------2Fe2O3(s)when a 55.8g sample of iron reacts completely with 1.00mole of O2. The enthalpy of formation (Hf) of Fe2O3(s) is -826KJmol-1.
2.which 0.10M aqueous solution exhibits the lowest electrical conductivity? A.HC2H2O2(aq) B.HNO3(aq) C.NH4C2H3O2(aq) D.Ca(NO3)2(aq)?
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Asked by okochaemmanuel on 26th March, 2019
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WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
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WAEC May/June 2024 - Practice for Objective & Theory - From 1988 till date, download app now - 99995
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WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
WAEC offline past questions - with all answers and explanations in one app - Download for free
WAEC May/June 2024 - Practice for Objective & Theory - From 1988 till date, download app now - 99995
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
WAEC May/June 2024 - Practice for Objective & Theory - From 1988 till date, download app now - 99995
WAEC offline past questions - with all answers and explanations in one app - Download for free