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A basketball player scored 25 times during one game. She scored a total of 49 ?points, two for each? two-point shot and one for each free throw. How many? two-point shots did she ?make? How many free? throws?
An unknown carbonyl compound tested positive when mixed with chromic acid solution. It also showed positive results in the iodoform test. Draw the structure of this compund
solid aluminum reacts according to the balanced equation. if a total of 830 kj of heat is produced in the reaction as
A solution of chloroform (CHCL3) in carbon tetrachloride (CCL4) is 1.87 molar chloroform and has a density of 2.93 grams/mL. Calculate
How many milliliters of 0.100 M NaOH(aq) would be needed to completely neutralize 50.0 milliliters of 0.300 M HCl(aq)
Count Rumford observed that using cannon-boring machinery, a single horse could heat 11.6 kg of water (T = 273 K) to T = 355 K in 2.5 hours
Suppose that the microwave radiation has a wavelength of 13.2 cm. How many photons are required to heat 200. mL of coffee from 23°C to 62°C?
A mixture of p-nitroaniline and o-nitroaniline is separated by column chromatography. which compound will be eluted first? Give reason.
the critical temperature of the mixture is known to be 200 F. Compare your answer with the critical pressures of pure methane and pure n-hexane.
a 40 year old manager experiences abdominal pain post lunch. he goes to the restroom a couple of times but continues to
a peanut butter sandwich provides about 1.6 103 kj of energy. a typical adult uses about 95 kcalhr of energy while
Calculate all the preceeding concentrations and the weight of biomass, {CH2O}, produced. Assume no input of atmospheric CO2.
The three gases N2, O2, and NO are in equilibrium. The formation of NO is endothermic. Write the equation for the equilibrium. (Type your answer using the format CO2 for CO2. Use the lowest possible coefficients.)
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