Discuss the correct oxidation numbers for the elements
The compounds listed below are followed by oxidation numbers. Determine whether these are the correct oxidation numbers for the elements in each compound.
BrO3- (+5,-2)PO43- (+5,-2)Fe2O3 (+6,-2)HCO3- (+1,+4,-2)Cr2O72- (+6,-2)
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Accordin to this model, when will the population of the country reach a) 302 million people? b)372 million people? Give the year as an answer for a and b.
F2O3 is added to Al. Potassium chlorate, sugar are added attop of this, followed by few drops of concentrated sulfuric acid tostart this very exothermic reaction. at the end aluminum has reduced iron oxide to iron.
An irreguarly shaped object of mass 2.40 kg has a moment of inertia of 4.566 kgm^2 about an axis through the point 1.05 m from its center of mass. Calculate the moment of intertia about a parallel axis through its center of mass.
Assume that airresistance is so small that it can be ignored and that the zeropoint of gravitational potential energy is located at the positionat which the ball leaves the thrower's hand. a. Sketch a graph of the kinetic energy of the baseball.
There is friction as the pulley turns. The block starts from rest, and its speed after it has traveled downwards a distance of D= 0.65 m, is 1.519 m/s. Calculate the amount of energy dissipated up to that point.
Use your value for the heat of neutralization, ΔH1,to determine the amount of heat evolved when 10.00 mL of 0.5032 MHNO3 reacts with 10.00 mL of 0.5005 M NaOH.ΔH1 = -73 kJ/mol
For benzene the freezing point constant, Kf is 5.12 kg mol-1and its normal freezing point is 5.5 celcius. what is the freezing point of a solution containing 100.0 g of benzene and 20.0 of naphthanlene?
The general equation for this is given by V t = Vpeak=sin 2pi*f*t , where Vpeak is the peak voltage (amplitude) and f is the frequency. Determine the following For time value t.
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