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A small solid crystal is added to a clear liquid. Immeadiately after that, many other crystals begin to precipitate throughout the clear liquid. This indicates that the clear liquid was actually a solution. Which type of solution was it?
a.) miscible
b.) immiscible
c.) saturated
d.) supersaturated.
What is the density of a block of marble that occupies 253 cm and has a mass of 752 g? Answer in units of g/cm
The photon emitted or absorbed during an electronic transition between n = 1 and n = 2 in a hydrogen atom has a wavelength in the visible portion of the electromagnetic spectrum and an energy that is greater than a similar electronic transition
What types of bombs were dropped on Hiroshima and Nagasaki, resulting in Japans surrender at the conclusion of WWII? What isotopes were used in the bombs? What were the long term effects of these bombs?
What is the [OH-] in a solution that has a [H3O+] = 1 x 10-6 M?
The rate of reaction indicates the speed at which the reaction can occur. It can be expressed in terms of a change in the concentration of reactants or products per unit of time
A 455-g piece of copper tubing is heated to 89.5 Celcius and placed in an insulated vessel containing 159g of water at 22.8 degrees Celcius. Assuming no loss of water and a heat capacity of 10.0 J/K for the vessel, what is the final temerature? (c..
Calculate the concentrations of all species present (C6H5NH2,C6H5NH3+,OH-, and H3O+ ) in a 0.14M solution of aniline. Express using two sig figs.
Which of the following statements is correct concerning the neutralization of sulfurous acid by a strong base 2OH-(aq) + H2SO3(aq) SO32-(aq) + 2H2O(l)
Solution of Barium chlorate with a solution of Silver fluoride
how thick of a veneer is required if some of the water from the meteorite dissociates and the resulting oxygen is used to oxidize one third of Fe+2 in the outer 800 km of the 6000 km proto earth to Fe3+?
(a) Draw a diagram of the electrochemical cell, labeling all electrodes and solutions. (b) What is the pH in the Pt | H+ | H2 half-cell? (c) What is the value of the equilibrium constant for the reaction occurring in this cell
On the obtained mass-spectra you got in the expected parent-ion mass region two adjacent lines with almost the same abundance
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