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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.
NaOH is added to K2CrO4 and K2Cr2O7 separately in test tubes and a color change is noted.
Carbonyl bromide decomposes to carbon monoxide and bromine. COBr2 (g) ↔ CO(g) + Br2 (g) Kc is 0.190 at 73?C. If you place 0.500 mol of COBr2 in a 2.00 L flask and heat it to 73 ?C,
Calculate the conditional formation constant Kf for the formation of an EDTA complex with copper (II) at a pH of 5.00, if log Kf= 18.80
Equilibrium constant Kc for the reaction: H2 (g) + CO2 (g) - H2O (g) + CO (g) a) in one experiment, a container is introduced in a mixture formed by the four shown in the reaction gases.
Aqueous hydrochloric acid reacts with zinc metal to yield hydrogen gas and aqueous zinc chloride. Write a net ionic equation for the process: 2 HCl(aq) + Zn(s) ? H2(g) + ZnCl2(aq)
you will be using 1.4 grams of salicylic acid to make aspirin. salicylic acid is the limiting reagent and one mole of
prepare a 700- to 1050-word paper in which you analyze the effects of ionizing radiation on dna to provide a chemical
What volume of oxygen gas is required to react completely with 1.32 mol of iron according to the following reaction at 0 C and 1 atm
Some refrigerators cool their contents by evaporating liquefied dichlorodifluoromethane CCl2F2. How many kg of this liquid must be evaporated to freeze a tray of ice cubes at room temperature (25 degrees C) Delta H fusion= 6.01 kJ/mole
by mistake a quart of oil was dumped into a swimming pool that measures 25.0cm by 30.0cm assume the oil spread entirely
Calculate the final temperature when a 24.7 gram sample of ice at 0oC is placed into a styrofoam cup containing 126 grams of water at 78.0 oC. Assume that there is no loss or gain of heat from the surroundings.
Calculate the number of moles of H2O that will be produced by the reaction of .530 moles of solid Al(OH)3 with excess aqueous HClO3
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