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Describe an experiment you could preform to determine whether Pb2+ had leached into water drawn from plumbing in which lead was used to solder to join copper pipes. Describe the observation of a positive test and write the net ionic equation for a positive test.
If the radius of a nickel atom is 0.125nm, what is the atomic radius of a nickel atom in picometers(pm)?
Assuming that the answer to part (a) above is exactly 50.0 ?g/m3, what is the concentration at the same downwind distance but at a cross-wind distance of 500 m off the centerline? Give your answer in g/m3.
what is the theoretical amount of water mw 18.02 gmol in grams that could form when 26.67 grams of aluminum oxide mw
Compare the amount of energy released by the complete combustion of 1 gallon of ethanol with the amount of energy released by the complete combustion of 1 gallon of octane.
cyanides are toxic molecules featuring c-c-n bonds. isocyanides are an unstable group of molecules where the order of
a 120-pound person uses 3 calories per minute walking at a 20 minmile pace. approximately how many miles would a person
Write down a lewis structure for SbCl5 and also explain Does the the octet rule is obeyed by this molecule Explain how many grams would 3.01 * x10 23 atoms of tellurium have?
The specific heat of aluminum is 0.902 J at 25C. How much heat, in kJ, does it take to raise the temperature of a 12.0 g chunk of aluminum from 15.5C to 35.5C
Working with triple point, The sublimation pressures of solid chlorine are 352 Pa at -112 C and 35 Pa at -126.5 C. The vapor pressures of liquid Chlorine are 1590 Pa at -100 C and 7830 Pa at -80C
A reaction vessel contains these compounds at equilibrium. What will happen if the volume of the container is reduced by 50% at constant temperature?
Complete the following table with the correct formulas from the ions
a particle has a velocity equal to 0.25 c and a wavelength of 1.3 x 10^-16 m. Calculate the mass of the particle in kilograms. c=3.0 x 10^8 m/s
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