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During a thunderstorm, 4.5 s elapses between observing a lightning flash and hearing the resulting thunder. Approximately how far away, in kilometers and miles, was the lightning flash?
Rubidium has two naturally occurring isotopes: Rb-85 with mass 84.9118 amu and a natural abundance of 72.17%, and Rb-87 with mass 86.9092 amu and a natural abundance of 27.83%.
Calculate the cell potential of the following voltaic cell Zn / Zn2+ ( 1.0 x 10-8 M) // Cu2+ (1.0 x 10-6 M) / Cu a. + 1.16 V b. + 1.03 V c. + 1.14 V d. + 1.06 V e. + 1.10 V
Scale up the reaction from a 10 mL sample of WVO, 2 mL of methanol and 0.1 g DRANO. Calculate the cost of the reactants to convert one gallon of WVO into one gallon of biofuel.
The density of gold is 19.3 g/mL. What volume (in mL) will a 0.728 lb sample of gold occupy
Specified that the specific heat of the solution is 4.184 J/g°C, the density of the solution is 1.00 g/mL, as well as that the heat of neutralization for the process H+(aq) + OH-(aq) > H2O (1) is -56.2 kJ, define what is the final temperature of t..
Consider the following reaction: CO(g)+H2O(g)in equilibrium with CO2(g)+H2
Draw the Lewis dot structure of CNNO2 along with all possible resonance structures, labeling formal charges.
Give a stepwise mechanism showing the base-induced formation of diphenyl-acetylene from meso-stilbene dibromide. Use curved arrows to symbolize the flow of electrons.
Assuming no change in volume of the solution, determine the pH, the concentration of barium ions in the final solution, and the mass of solid formed Explain each and every step in detail. I need proficient help in the above problems.
lead is a toxic metal that affects the central nervous system. a pb-contaminated water sample contains 0.0013 pb by
An unknown, rectangular substance measures 3.6 cm high, 4.21 cm long, and 1.17 cm wide. If the mass is 21.3g, what is this substance's density?
In a particular redox reaction, NO is oxidized to NO3- and Fe3 is reduced to Fe2 . Complete and balance the equation for this reaction in acidic solution
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