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The sun has estimated mass of 2x10^36 and the sphere is of average radius of 6.96x10^5 km, calculate the average density of the sun in units of kg/km^3
A 0.250g sample of a compound containing only carbon and hydrogen whose molecular weight is 16g/mol is burned in oxygen to yield 0.784g CO2 and 0,642g H2O.
How many grams of oxyen are consumed, how many grams of CO2 & H2O are produced?
Network for Subcontractor and Linear Model for Minimizing Costs.A mechanical contractor pays his subcontractors a fixed fee plus mileage for work performed
The fluoride ion is very toxic. Not only does it interfere with glycolysis, but if forms an insoluble precipitate with calcium ions (Ksp = 4.13 x 10-11).
Linear programming to find maximum profit using excel solver.Worley fluid supplies produces three types of fluid handling equipment control valves
A utility company serves three cities from its three power plants. The power plant capacities and energy delivery costs per unit (in $) from each plant
Non-linear programming problem find minimum profit using excel
Explain what is meant by a Scientific Method.Write your answer/response in detail with examples and facts and figures
Determining which solutions will form a precipitate when mixed together
If the molar mass of a binary compound has a molar mass between 27 and 28 and contains 78.14% boron and 21.86% hydrogen.
Whiskey can have an alcohol content in the 50 to 60% range whereas the upper limit for alcohol content in beers and wines is only about 10%. Why is this?
How would you describe how to separate a mixture of oil, sand, and saltwater?
Calculate the frequency, in units of "per second", of light with a wavelength of (a) 540 nm, and (b) 650 nm.
Which elements has an outermost electron that could be described by the following quantum numbers: (3,1,-1,+1/2) ?
Understanding radioactive decay, half-life and nuclear chemistry.
Finding volume in a molarity problem.What volume, in milliliters, of a 2.00 M aqueous KOH solution would be needed to neutralize
How do you work out which ionic molecules are more polarised and which are less covalent
What is the Molarity(m) of a solution that contains 73.5g of 1,4-dichlorobenzene,C6H4Cl2, in 500mL of carbon tetrachloride? (The density of CCl4 is 1.60g/mL).
Why or why isn't it possible to have pi bonds between two atoms without there being a sigma bond?
A solution with 18 grams of AgNO3 was mixed with a solution. 32.4 grams of FeCl3. How many grams of which reactant remains after reaction?
Absorption Spectroscopy Experiment.Describing an experiment where one could measure the value of the extinction coefficient
Discussion of interactive/repulsive forces.A nonelectrolyte solution adsorbs on an electrically neutral solid through a liquid.
Does this Lewis structure make a substantial contribution to the electronic structure of BF3? Explain your answer.
Calculate the molarity of a solution prepared by dissolving 3.12 grams of gaseous HCL in enough water to make 26.8 mL solutions.