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There aew two steps in the extraction of copper metal from chalcocite, a copper ore. In the first step, copper (I) sulfide and oxygen react to form copper (I) oxide and sulfer dioxide:
2Cu2S(s)+3O2(g)--->2Cu2O(s)+2SO2(g)
In the second step, copper (I) oxide and carbon react to form copper and carbon monoxide
Cu2O(s)+C(s)--->2Cu(s)+CO(g)
Write the net chemical equation for the production of copper from copper (I) sulfide, oxygen, and carbon. Be sure your equation is balanced.
The heat of vaporization of 1.0 mole of water at 100°C and 1.0 atm is 40.6 kJ. Calculate the change in entropy for the process H2O(l) → H2O(g). Document your work here.
how much isopropanol and how much water will you use to make 20 ml of a 40 isopropanol water solution? how much
A 1.000-g sample of stannous fluoride gives a 1.175-g precipitate of stannous phosphate. Compute the theoretical yield and percent yield of Sn3(PO4)2
Question- A pure gold ring and pure silver ring have a total mass of 16.0g . The two rings are heated to 64.9?C and dropped into a 14.5mL of water at 20.9?C. When equilibrium is reached, the temperature of the water is 22.9?C. What is the mass of ..
a sample of 1.05 g of lead ii nitrate is mixed with 130 ml of 0.106 m sodium sulfate solution. what are the
Describe how a linear sequence of amino acids gives rise to the three-dimensional structure of proteins. Detail the significance of this structure, how it may be modified, and the results of such modification.
Question- 1) When (R)-2- bromobutane undergoes reaction with sodium ethoxide in ethanol, the major product is a trans-alkene while the minor product is a cis-alkene. Explain why
How many atoms of all kinds. What is the mass of manganese in a sample of MnO2 containing 2.86 x 10^24 atoms of oxygen
Suppose a solution contains 0.28 M Pb2 and 0.48 M Al3. Calculate the pH range that would allow Al(OH)3 to precipitate but not Pb(OH)2.
What are the mechanisms for the following 2 reactions: 1. 2-iodohexane reacting with NaOCH3/HOCH3 2. 2-iodohexane reacting with HOCH2CH3/heat
Looking at the colors of the mixtures containing 5.0, 6.7, and 7.5 mL of EN, would you conclude that you prepared one, two, or all three complex ions when you combined the various mixtures of 2.0 X 10-2 M CuSO4 and 2.0 X 10^-2 M EN
At 100 degrees C, the vapor pressure of water, methanol, and ethanol are 760, 2625, and 1694 torr, respectively. Which counpound has the highest normal boiling point.
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