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Pure antimony can be recovered from ore using two different reactions shown below. Reaction 1: Sb2S3 (s) + 3Fe (s) --> 2Sb (s) + 3FeS (s) ?H = -125 kJ Reaction 2: Sb4O6 (s) + 6C (s) --> 4Sb (s) + 6CO (g) ?H = 778 kJ a. Determine which elements are being oxidized and which elements are being reduced in each reaction
calculate the concentration (molarity) of AgCl in a saturated solution.
Use the concentrations given below for the concentrated chemcal molarities and write out your calculations to obtain the volume of each stock solution needed to obtain 30.00 L of a 6.00 M
Mg + 2 HCL -> MgCl2 + H2 What volume of hydrogen at STP is produced from the reaction of 50.0 g of Mg and the equivalent of 75 g of HCl?
How many molecules of oxygen react with 133 molecules of acetylene (HCCH) to produce carbon monoxide and water
how does temperature affect the equilibrium constant of the reaction between ethanoic acid and ethanol (condensation reaction at room temperature and pressure.
You need to determine value of ?G° for CO(NH2)2(s) + H2O(l) CO2(g) + 2NH3(g)?
What is the enthalpy change when a 4.0 gram sample of aluminum burns in excess of oxygen to form aluminum oxide?
starting with any alkane, alkene, or alkyne as your only organic reactant, propose a series of chemical reactions that will yield
A laboratory technician needs to make 500.0mL of a 0.25 M NaOH solution. What mass of sodium hydroxide does the technician need to use?
A mass of solid aluminum is at its melting point. what is the maximum mass of this sample that can be melted by 120 kJ of heat? ( Cp=0.900J/gc ; Hfus= 35.7 KJ/g
What volume of distilled water do you need to add to dilute 1 mL of a 100 mM Tris-HCl buffer solution to a concentration of 1 mM
Reaction rate laws are frequently used to investigate reaction mechanisms. Would your results to this experiment be consistent with either or both of the following mechanisms?
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