Please Help 10 Minutes before its due
1) The production of steel from iron involves the removal of many impurities in the iron ore. The following equations show some of the purifying reactions. Calculate the enthalpy (ΔH) for each reaction. __C(s) + __Fe2O3(s) --> __3CO(g) + __2Fe(s) ΔH = ___kJ/mol
2) 3Mn(s) + Fe2O3(s) --> 3MnO(s) + 2Fe(s) ΔH = ___ kJ/mol
3) 12P(s) + 10Fe2O3(s) _--> 3P4O10(s) + 20Fe(s) ΔH = ___kJ/mol
4) 3Si(s) + 2Fe2O3(s) --> 3SiO2(s) + 4Fe(s) ΔH =___ kJ/mol
5) 3S(s) + 2Fe2O3(s) --> 3SO2(g) + 4Fe(s) ΔH = ___ kJ/mol
Answers: 3
Chemistry, 21.06.2019 22:00
If the particles in a sample of matter have an orderly arrangement and move only in place, the sample is a
Answers: 1
Chemistry, 22.06.2019 12:00
Most materials are not magnetic because their magnetism has worn off. their magnetic domains are arranged randomly. they lack magnetic fields. earth’s heat has destroyed their magnetism.
Answers: 1
Chemistry, 22.06.2019 16:50
Which of the following is an indication that a substance has undergone a chemical change? a. no new product has been formed. b. the color of the substance has not changed. c. the original constitute has not changed. d. the molecular structure has changed.
Answers: 1
Please Help 10 Minutes before its due
1) The production of steel from iron involves the removal of...
English, 08.04.2021 20:00
Advanced Placement (AP), 08.04.2021 20:00
English, 08.04.2021 20:00
English, 08.04.2021 20:00
History, 08.04.2021 20:00
Business, 08.04.2021 20:00
History, 08.04.2021 20:00
Social Studies, 08.04.2021 20:00
Mathematics, 08.04.2021 20:00