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Tarnish (silver sulfide) may be removed from a silver spoon by placing the spoon in contact with a metallic container holding a solution of baking soda. NOTE: The baking soda is a catalyst for the reaction; therefore, it does not appear as one of the reactants not as one of the products....
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How much heat is evolved when 269 g of ammonia gas condenses to a liquid at its boiling point?
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what substence has a melting point of 776
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equilibrium mutiple choice
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Evaluate the orders of A and B for the given reaction from the following data. A + B products [A]0 (mol/L) [B]0 (mol/L) Initial Rate (mol L-1 s-1) -------------------------------------------------------------------------------- 0.2 1.0 3.0 0.5 1.0 11.8 1.0...
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Use standard heats of formation and absolute entropies to calculate K for H2(g) + O2(g) H2O2(l) at 378 K.
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2 O3 (g) 3 O2 (g) + heat [6.0 x 10-1] [0.21]
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The standard voltage of the cell Ag(s) |AgBr(s) |Br (aq) ||Ag+(aq) |Ag(s) is +0.73 V at 25 C. Calculate the Ksp for AgBr. 1. 2.2 1012 2. 2.0 10 15 3. 5.1 1014 4. 3.9 10 29 5. 4.6 10 13
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A saturated solution of which of the follow- ing substances in water would be the best conductor of electricity? 1. NH3 2. Hg2Cl2 3. CH4 4. HCl 5. CH3COOH Magnesium metal is placed in contact with an underground steel storage tank to inhibit the corrosion of the tank because 1....
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Calculate the equilibrium constant
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Sample Questions
- 1. For organic chemistry, what is a concerted shift? How do things like acids or heat affect them? What other factors affect them?
- 2. Which of the following reactions is an acid-base neutralization reaction? Why are the rest of the answers incorrect?
- A. AgNo3 (aq) + NaI (aq) --> AgI (s) + NaNO3 (aq)
- B. S8(s) + 8O2 (g) --> 8SO2(g)
- C. Na3PO4 (s) + 2H2O (l) --> H2 (g) + 2NaOH (aq)
- D. Ca (OH)2 (aq) + 2HI (aq) --> CaI2(aq) + 2H2O (l)
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