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determine the net change of oxidation number of each of the elements in the redox equations.
A sample of sodium reacts completely with 0.426 of chlorine, forming 702 of sodium chloride. What mass of sodium reacted?
A covalent compound is composed of a nitrogen atom, a hydrogen atom, and a carbon atom. How many electrons should the Lewis structure of the covalent compound contain?
Calculate the molar solubility of bbarium sulfate, BaSO4, in 0.010 M Sodium Sulfate, Na2SO4, solution at 25C. Compare this to the solubility of BaSO4 in pure H2O. What is the common ion?
how many grams of sulfur dioxide could be formed in a mixture of 128 grams of sulfur and 100 grams of oxygen are mixed and ignited.
Determine the molar concentration of silver nitrate(AgNO3) in a solution if titration of twenty five mili litres of the solution with 0.300M sodium chloride (NaCl) needs 37.05ml of the sodium chloride solution to reach the end point?
A red laser pointer emits light with a wavelength of 660. What is the frequency of this light? 2.What is the energy of one of these photons?
A chemist wants to make 6.5 L of a 0.270 M solution. What mass in grams should the chemist use?
If the pressure of CO2 is 0.550 atm, what concentration of carbon dioxide can be dissolved in water at 0.00C.
A 5.0 L sample has a pressure of 5.0 atm. What is the volume of the anesthetic given to a patient at a pressure at a pressure of 1.0 atm?
A 25.0 g sample of pure iron at 85.0°C is dropped into 75 g of water at 40.0°C. What is the final temperature of water-iron mixture?
Predict the anode, cathode, and overall cell reactions when an aqueous solution of each of the following salts is electrolyzed in a cell having
What is the theoretical yield of aluminum oxide if 1.60 mol of aluminum metal is exposed to 1.50 mol of oxygen?
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