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How many atoms of iodine are in .500 moles of Ca(IO3)2? How many grams of calcium iodate are needed to supply this much iodine?
one type of electromagnetic radiation has a frequency of 107.1 MHz another type has a wavelength of 2.12*10^-10m,and another type ofelectromagnetic radiation has photons with energy equal to 3.97*10^-19J/photon. identify each type of electromagnet..
Calculate the wavelengths of the following objects? c)a 83Kg athlete running exactly a 4 minute mile d)earth (mass=5.8x10^27g) moving through space at 2.8x10^4m/s
List all the ionic species present (before any solution occurs) when the following solutions are mixed together: Ni(NOsub3)sub2(aq) and CaClsub2(aq)
A 13 gram sample of calcium reacts with bromine to form 24 grams of calcium bromide. How many grams of bromine are used in the reaction?
a large containerized planting that contains 79kg of soil. An analysis shows that you need to neutral 3.27 meq/100gof acidity. How much of finely ground pure CaCO3
analysis of a carbohydrate showed that it consisted of 40.0 c 6.71 h and 53.3 o by mass. its molecular mass was
The formal charge on the P atom is zero and It is best described with three resonance structures.
At 1 atm, how much energy is required to heat 95 g of H2O at -20 degrees C to H2O at 137 degrees C
the current vs. time graph for a particular electrochemical reaction run at 25degc shows that the current drops off to
Calculate the average translational kinetic energy (sometimes just called average kinetic energy) for one mole of gas at 385 K.
phosphoric acids, rather than hydrochloric acid, used to catalyze the dehydration of alcohols?
container at a temperature of 47C exerts a pressure of 6.3 atm. Calculate the number of moles in the sample
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