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When a solution of Cu(II) chloride, CuCl2 , is added to a solution of potassium sulfide, K2S, a black precipitate of copper sulfide, CuS, forms. Write a balanced chemical equation, ionic equation, net ionic equation & spectator ions.
Find the total time in minutes for a class that lasted 2.76 hours, 353 minutes and 45,980 seconds. Please show me every step.
Is a 0.15M solution of potassium benzoate C6H5COO-K+ acidic, basic, or neutral? Calculate the pH. The Kb for benzoic acid is 1.5 X 10^-10.
the heat capacity for the heat capacity of the calorimeter in calculating the enthalpy of reaction. What effect would ignoring this have on the calculation?
The temperature increased by 10.08 oC. Use these data, plus the information given below for CO2 and H2O, to estimate the standard enthalpy of formation,
How much heat is required to warm 229 g of ice from -47.1°C to 0.0°C, melt the ice, warm the water from 0.0°C to 100.0°C, boil the water, and heat the steam to 173.0°C?
What volume of pure oxygen gas measured at 740 torr and 27 degree C will be obtained when 15.0 g of potassium chlorate are decomposed
when 2.00 x 10 3 g of CaCo3 are heated the actual yield of Cao is 1.05 x 10 3 g. what is the percent yield?
What will be the concentration of Ca2 (aq) when Ag2SO4(s) begins to precipitate. What percentage of the Ca2 (aq) can be separated from the Ag (aq) by selective precipitation
Compound A is unchanged when treated with dilute base, but treatment of A with concentrated NaOH and heat gives a new compound B (C10H19N) that decolorizes Br2 in CCl4. Compound B is identical to the product obtained from the reaction sequence bel..
A 400ml sample of gas at 10 degrees celsius is warmed to 25 degrees celcius at a constant pressure. Calculate the final volume.
Why is normalization of a probability distribution important? What would one have to consider when working with a probability
the reaction of concentrated hydrochloric acid with zinc metal -the reaction of solid strontium carbonate with nitric acid
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