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Write an orbital diagram for the ground state of the Calcium atom. Is this atomic substance diamagnetic or paramagnetic?
What is the concentration of OH- in a solution that contains 0.225g of NaOH in 0.250L of solutio.
Write the net ionic equation for this reaction. (Include states-of-matter under the given conditions in your answer. Use the lowest possible whole number coefficients.)
Explain the dissolution of the sulfides of copper, bismuth and cadmium in nitric acid. Include ionic equations. If a yellow precipitate is obtained upon addition of hydrogen sulfide to an unknown solution of Group II cations, which ions are probably..
Rutherford result also showed that the most of the atom's mass is located in the nucleus which has a very small volume.
What volume of 4.7 M NaOH is required to react completely with 1.7 mL of a 1.51 M HCl solution?
Sodium hypochlorite, NaOCL, is the active ingredient in household bleach. What is the concentration of hypochlorite ion, if 20.00mL of bleach requires 32.00mL of 0.500 M HCL to reach the equivalence point
ampere current have to be applied to plate out 8.00 grams of copper metal from te aqueous copper(II) sulfate solution?
Assume that the kinetic energy of a 1500kg car moving at 95 km/h can be converted entirely into heat. What amount of water could be heated from 20 C to 50 C by the car's energy?
Given that Iron(III) oxide or ferric oxide (molar mass = 159.7 g/mol) reacts with Carbon monoxide (molar mass = 28.0 g/mol).
calculate how many moles of KIO3 are needed to make 50 ml of 0.20 M solution?
A gaseous mixture of O_2 and N_2 contains 40.8% nitrogen by mass. What is the partial pressure of oxygen in the mixture if the total pressure is 325 mmHg?
A 32.0-g sample of water at 290. K is mixed with 51.0 g water at 340. K. Calculate the final temperature of the mixture assuming no heat loss to the surroundings.
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