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Write balanced molecular, total ionic and net ionic equations for the reaction of aqueous copper (II) sulfate and aqueous sodium sulfide. Be sure to include proper phase labels.
Molecular equation :
Total Ionic equation :
Spectator ions :
Net Ionic equation: Cu2+(aq) + S2-(aq) --> CuS(s)
Approximately how many grams of KCl are there in 200 mL of a 4.0% by mass KCl aqueous solution? Assume that the density of solution equals that of pure water.
Determine the formation constant, Kf, of AC5. Kf=? The solubility of AB(s) in a 1.000-M solution of C(aq) is found to be 0.152 M. What is the Ksp of AB? Ksp=?
Iodine-131 is administered orally in the form of NaI(aq) as a treatment for thyroid cancer. The half-life of iodine-131 is 8.04 days. If you begin with 49.8 mg of this isotope, what mass remains after 13.4 days have passed
Calculate the energy of a photon of electromagnetic radiation at each of the following frequencies with 4sigfig
A 30.00 mL volume of a weak acid, HA, (Ka = 3.8 x 10^-6) is titrated with 39.00 mL of 0.0958 M NaOH to the equivalence point. What is the pH of the analyte solution before any base is added to it
Consider these three reactions, and their corresponding values of ?Gº: 1/2 N2 + O2 NO2 ?Gº = 100 kJ 2 NO2 2 NO + O2 ?Gº = 200 kJ NOBr NO + 1/2 Br2 ?Gº = 300 kJ Calculate the value of ?Gº for 1/2 N2 + 1/2 O2 + 1/2 Br2 NOBr.
A voltaic cell is constructed with a Mg/Mg2+ (Eo = -2.370 V) half-cell and the Au/Au3+ (Eo = +1.500 V) half-cell. Which statement is correct for the spontaneous reaction
what type of intermolecular forces are expected in a nicl2
A muon is an elementary particle with a negative charge equal to the charge of an electron and a mass approximately 200 times that of the mass of an electron.
Under what circumstances with regards to degrees of no polar characters are frenkel and schottky defects likely?
Magnesium hydroxide, the active ingredient in milk of magnesia neutralizes stomach acid , primarily HCL, according to the reaction: Mg (OH)2 (aq) + 2 HCL(aq) ---> 2 H2 O (l) + Mg(OH)2(aq).
Calculate the percent by mass of potassium nitrate in a solution made from 45.0 g KNO3 and 295 mL of water. Density of water is 0.997 g/mL.
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