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August 30, 2014

Posts by yr


Total # Posts: 14

chemistry
Which of the following compounds is expected to have the strongest interaction between its molecules? CO2, NO2, SO2, H2S
January 28, 2013

immunology
what is meant by natural immunity to parasites?
September 12, 2011

immunolory
what are mediators cells
September 5, 2011

chemistry
Use the ΔH°f information provided to calculate ΔH°rxn for the following: ΔH°f (kJ/mol) SO2Cl2 (g) + 2 H2O(l) → 2 HCl(g) + H2SO4(l) ΔH°rxn = ? SO2Cl2(g) -364 H2O(l) -...
April 27, 2011

chemistry
se the information provided to determine ΔH°rxn for the following reaction: ΔH°f (kJ/mol) 3 Fe2O3(s) + CO(g) → 2 Fe3O4(s) + CO2(g) ΔH°rxn = ? Fe2O3(s) -824 Fe3O4(s) -1118 CO(g) -111 CO2(g) -...
April 27, 2011

chemistry
How much energy is required to decompose 765 g of PCl3, according to the reaction below? The molar mass of PCl3 is 137.32 g/mol and may be useful. 4 PCl3(g) → P4(s) + 6 Cl2(g), ΔH°rxn = +1207 kJ
April 27, 2011

chemistry plse help
Use the standard reaction enthalpies given below to determine ΔH°rxn for the following reaction: P4(g) + 10 Cl2(g) → 4PCl5(s), ΔH°rxn = ? Given: PCl5(s) → PCl3(g) + Cl2(g), ΔHÂ&...
April 27, 2011

clinical chemisty
why is lupus inhibitors important
April 26, 2011

chemistry
given C12H22O11+H2O----C6H12O6+C6H12O6 heat combustion 0f 2815.8 kj/mol what is the standard enthalpy
April 19, 2011

chemistry
given C12H22O11+H2O----C6H12O6+C6H12O6 heat combustion0f 2826.7kj/mol what is the standard enthalpy
April 19, 2011

chemistry
given C12H22O11+H2O----C6H12O6+C6H12O6 heat combustion0f 5646.7kj/mol what is the standard enthalpy
April 19, 2011

chemisrty
what is the balance equation of CH3COOH(aq)+NH3(aq)
April 18, 2011

chemisrty
Which of the following is an acid base reaction? C(s) + O2(g) → CO2(g) MgSO4(aq) + Ba(NO3)2(aq) → Mg(NO3)2(aq) + BaSO4(s) 2 HClO4(aq) + Ca(OH)2(aq) → 2 H2O(l) + Ca(ClO4)2(aq) Fe(s) + 2 AgNO3(aq) → 2 Ag(s) + Fe(NO3)2(aq) None of the above are acid base ...
April 17, 2011

chemistry
According to the following reaction, how many moles of Fe(OH)2 can form from 175.0 mL of 0.227 M LiOH solution? Assume that there is excess FeCl2. FeCl2(aq) + 2 LiOH(aq) → Fe(OH)2(s) + 2 LiCl(aq)
April 17, 2011

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