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Draw the Lewis structure and shape for the ammonia, NH3. Which of the following statements are correct. VSEPR Choose at least one answer. a. There are 8 valence electrons. b. There are 10 valence electrons. c. The steric number is 3 d. The steric number is 4. e. The steric number is 5. f. The shape of ammonia is trigonal pyramidal. g. The shape of ammonia is tetrahedral. h. The shape of ammonia is trigonal planar.
what should be the instantaneous rate of the first order decomposition of 3 h2o2 3g h2o2 per 100g solution? assume the
How many grams of KCN will be needed to make 817 mL of pH = 11.836 solution when added to distilled water (Ka HCN= 6.2x10-10)
How many grams of CO are needed to react with an excess of Fe2O3 to produce 209.7g Fe? Fe2O3(s) + 3CO(g) -> 3CO2(g) + 2Fe(s)
This reaction is sometimes used to inflate life rafts, weather balloons, and the like, where a simple, compact means of generating H2 is desired. How many grams of CaH2 are needed to generate 143L of H2 gas if the pressure of H2 is 823torr at 21de..
Suflur dioxide may be catalytically oxidized to sulfur trioxide. How many grams of sulfur dioxide could be converted by this process if 100.0 grams of oxygen are available for the oxidation?
How many moles of oxygen are combined with 4.20 moles of chlorine atoms in C2O7?
The resulting solution required 12.36 mL of 0.1211 M NaOH to back titrate the excess HCl. What was the percent CaCO3 in the unknown? Report your answer to two (2) decimal places
What is the chemical equation of this coupled process? Show that the reaction is in equilibrium, include physical states, and represent graphite as C(s). What is the thermodynamic equilbrium constant for the coupled reaction
When optically active B was treated with CrO3 in pyridine, an optically inactive sample of A was obtained. Heating A with hydrazine in base gave hydrocarbon C, which, when heated with alkaline KMnO4, gave carboxylic acid D. Identify compounds A, B..
the signs of the unsquared wave functions are usually shown in plots of the squared functions. why is this so
The activation energy for a given reaction is kJ/mol. What is the ratio of the rate constants for this reaction when the temperature is decreased
a sample of water is examined to have two metals with mcl cd2 and al3. this water can treat with oh and the equilibrium
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