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a 570 kg diver dives from a height of 150 m she reaches a speed of 140 ms just before entering the water what was the
please need help show clear work please thank you1 although the speed and weight of a vehicle both affect force of
thermochemistry how many mls of water will be decomposed to hydrogen and oxygen by 85 kcal of the following equation
if an undetected bubble of air were trapped inside the gas collection tube what would be its effect on the percent
calculate the concentration of all species at equilibrium in 001 m acetic acid in water at 25 given ka of acetic acid
how much b5h9 must be burned to produce 4500 kcal of energy by following equation 2b5h912o29h2o5b2o3 delta h-4188
what is the equilibriumnbspca2nbspconcentration whennbsp229nbspl of anbsp0157nbspmnbspcalcium acetatenbspsolution are
oxygen gas o2 is required to burn propane c3h8 producing carbon dioxide co2 and water h2o in the process this is
if you hadnt added quite enough hydrochloric acid to consume all of the magnesium metal what would be the effect of
a solution ofnbspcopperii sulfatenbspcuso4 in water isnbsp9500nbspnbspcopperii sulfatenbspby mass its density
copperii chloride has the chemical formula cucl2 we wish to make a solution of copperii chloride by adding it to a
to carry out a chemical reaction you need 07 mol of hcl if you have a 40 m solution of hcl how many liters would need
write the reaction that occurs when hno3nbspis added to ammonium nh4ammonia nh3 buffer systemwrite the reaction that
given the following two reactions 2na2hcl2naclh2 delta h-15234 kcal h2cl22hcl delta h-4412 kcal what is delta h
determine the quantity g of pure cacl2nbspin 75 g of cacl2bull9h2o75g cacl2 9h2onbsp 1molecacl2 9h2o 27312 grams nbsp
an effusion cell has a circular hole of diameter 300 mm if the molar mass of the solid in the cell is 300 g mol-1 and
use the maxwell distribution of speeds to estimate a the fraction of co2 molecules at 300 k that have speeds in the
q1 during the coupling reaction why does the coupling occur in the 1-position for 2-naphthol hint write the resonance
what is the percent by mass of carbon found in caffeine c8h9n4o2 what is the mass of carbon in milligrams found in 95mg
a 3500-ml solution of 02500nbspmnbsphf is titrated with a standardized 01453nbspmnbspsolution of naoh at 25degca what
find the ph during the titration of 2000 ml of 01000nbspmnbsptriethylamine ch3ch23nnbspkbnbsp 52nbsptimesnbsp10-4
a 100-ml reaction vessel initially contains 260 times 10-2nbspmoles of no and 130 times 10-2nbspmoles of h2 at
explain how you could experimentally determine whether the outside temperature is higher or lower than 0 degc 32 degf
give the number of protons electrons and neutrons in neutral atoms of each of the following isotopes a 3 7li b 52 125te
an important industrial process for synthesizing the ammonia used in agricultural fertilizers involves the combination