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Look up a report the density of liquid water at different temperatures. Describe what happen to the density of liquid water when its temperature is increased and/or decreased. properly cite your reference source(s) for this information
A 2.00 g sample of ammonia is mixed with 4.00 g of oxygen. Which is the limiting reactant and how much excess reactant remains after the reaction has stopped
When calcium carbonate is added to hydrochloric acid, calcium chloride, carbon dioxide, and water are produced. How many grams of calcium chloride will be produced when 27.0 g of calcium carbonate are combined
How would the observed molar mass of the unknown lioquid have been affected by the following circumstances (would it be higher, lower than the true value, or remain unchanged.
Cesium(Cs) is used extensively in television cameras and in photocells because it has lowest ionization energy of all the stable elements.Determine the maximum kinetic energy of a photo electron ejected from cesium.
Th-232 has a half-life of 1.39 x 10^10 years old. A certain rock has a Pb-208/Th-232 mass ratio of 0.25/1.00. Estimate the age of the rock.
give a detailed mechanism of the reaction3. there are two possible products from this reaction. give the structure of both and explain why the product you obtained is a major product
The density of lead is 11.3 g/ml . The water level in a graduated cylinder initially at 217 ml rises to 286 ml after a piece of lead is submerged. What is the mass in grams of the lead?
Using Standard Free Energies of Formation at 25 degrees C, determine if the production of phosgene gas COCl2 from the combination of carbon monoxide gas (CO) and chlorine gas (Cl2) is spontaneous at room temperature.
Explain why the addition of a small amount of base to an acidic buffer solution causes only a small change in the pH of the buffer solution.
The following table lists molar concentrations of several ions in seawater. Using a density of 1.022 g/mL for seawater
The pH of .750 M sodium hypochlorite, NaClO, is 10.72. What is the pKb for this base
A 0.15 M solution of chloroacetic acid has a pH of 1.86 What is the value of Ka for this acid
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