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Draw the Lewis Structure and Model (with your molecular kit) the following molecules and answer the questions accompanying each molecule. Use Figures 10.3 to 10.8 and 11.1 to 11.7 as an aid. SiF? 1. How many VE are there? 2. What is the electron geometry? 3. What is the molecular geometry? 4. What are the hybridized orbitals? 5. Is the molecule polar or non-polar?
An enclosure of volume 0.398 L has a partial pressure of O2 of 3.50 10-6 torr at 30.°C. What mass of magnesium will react according to the following equation. 2 Mg(s) + O2(g) → 2 MgO(s)
Calculate the molarity of a solution made by adding 23.9 mL of concentrated potassium hydroxide (34.5 % by mass, density 1.46 g/mL) to some water in a volumetric flask
To determine the concentration of X in an unknown solution, 1.00 mL of 8.01 mM S was added to 4.00 mL of the unknown X solution and the mixture was diluted to 10.0 mL
Nitrogen dioxide reacts with water to produce oxygen and ammonia: Using the ideal gas law equation, calculate the grams of NH3 that can be produced when 3.70 L of NO2 react at a temperature of 415 Celsius and a pressure of 705 mmHg
In which pair of substances below does the substance with the greater entropy not follow the substance with the lesser entropy
How is HCl a base if it has no OH ions in is formula to omit when dissolved? Where does it's O come from
Explain what is methylphenidates purpose and its chemical structure? Also determine how does it affect the body of human beings ,what makes up that compound , what organs do it impact?
Find delta heat formation of butane. C4H10 + 13/2 O2 ---> 4 CO2 + 5 H2O. Delta H comb= -2881.9 Delta Heat formation of CO2 = -393.5kJ/mol Delta Heat formation of H2O = -241.8kJ/mol What is the kJ
for the reaction given below the frequency factor a is 8.7 1012 s-1 and the activation energy is 63 kjmol.nog o3g rarr
what is the concentration ratio of the free (and potentially toxic) Pb2+ (aq) in the blood to the much less toxic Pb 2+ - EDTA complex?
essential to prevent uncontrolled raise of the rate of chain reaction in the nuclear power plant. Can you try to find additional information how rate of chain reaction
A solution of Na3AsO4 is added dropwise to a solution that is 0.0643 M in Bi3+ and 0.000180 M in Cd2+. What concentration of AsO43- is necessary to begin precipitation
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