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Recognize the stable nuclide that is the end product in the natural decay chain that includes the secondary natural radionuclide Bi-214.
What is the kinetic energy of the emitted electrons when cesium is exposed to UV rays of frequency \rm 1.5\times 10^{15}~Hz
A student unfamiliar with the utilization of pipets incorrectly transferred the less than 5.00 ml of Cu(NO3)2 solution into the flask for the first dilution. Explain no correction was made for this mistake. Explain what effect will this have on th..
the reaction of potassium in water is extremely exothermic, what would be the problem with adding a large piece of potassium to a small amount of water?
The density of Toluene (C7H8) is .867 g/mL, and the density o thiophene (C4H4S) is 1.065 g/mL. A solution is made by dissolving 10.5 g of thiophene in 250 mL of Toluene.
A piston performs 450 L*atm of irreversible work on the surrounding, while the cylinder in which it is placed expands from 10. L to 25L. At the same time, 45 J of hear is transferred from the surroundings to the system.
A component of a protein called serine has the following percent composition by mass: 34.95% C, 6.844% H, 46.56% O, and 13.59% N. It also has an approximate molar mass of 100 g/mol.
All molecular compounds may have London, dipole-dipole, and hydrogen-bonding intermolecular forces affecting their physical and chemical properties.
A pure gold ring and pure silver ring have a total mass of 16.4g . The two rings are heated to 63.5 C and dropped into a 13.0 mL of water at 23.1 C. When equilibrium is reached, the temperature of the water is 25.2 C. What is the mass of gold ring
the equilibrium constant kc for the reactionpcl3g cl2g pcl5gnbspis 49 at 230degc. if 0.70 mol of pcl3 is added to 0.70
Write down the equilibrium expression for the conversion for sulpher dioxide into sulpher trioxide and rearrange this expression to give it in the form of an equation for straight line.
if an automobile travels 245 mi with a gas mileage of 21.5 migal how many kilograms of co2 are produced? assume that
The Ka for hypochlorous acid (HClO) is 3.0 x 10?8. What is [OH?] in a 0.145 M solution of sodium hypochlorite (NaClO)
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