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although i understand half-cell reactions im puzzled by how to approach the following corrosion reactions iron in an
a 1000 kg cart is rolling to the right at 150 ms a 500 kg man is standing on the right end of the cartwhat is the
in a severe storm 105 cm of rain falls on a flat horizontal roof in 310 min if the area of the roof is 205 m2 and the
a student titrated 10ml aliquots of her unknown amino acid solution with standard 01521m naoh and with 00986m hcl
a house painter stands 3 m above the ground on a 49-m-long ladder that leans against the wall at a point 47 m above the
given that one mole of naoh reacts exactly with one mole of potassium hydrogen phthalate write the chemical reaction
a 497 kg sled starts at rest on a horizontal road the coefficient of kinetic friction between the sled and the road is
potassium hydrogen phthalate has a molecular mass of 2042 gmole how many moles of potassium hydrogen phthalate are in a
suppose the 60-v battery is replaced by a battery of unknown emf and an ammeter measures i1 12 a find the other two
1 what role does cellular respiration play in the metabolism of an organism2 does cellular respiration occur
at the top of a 30m hill is a 5kg mass it is loaded into a spring cannon the cannons spring has a constant k 400 nm and
a block is dropped onto a spring with k 33 nm the block has a speed of 34 ms just before it strikes the spring if the
a sample of water at 230 c required an input of 169 x 104 j of heat to reach its boiling point 100 c what is the mass
so2cl2 decomposes in the gas phase by the reaction so2cl2 g so2 g cl2 gthe reaction is first order in so2cl2 and the
in an experiment that tested the effect of light intensity onthe rate of photosynthesis we do not run a control tube in
urea is an organic compound widely used as a fertilizer its solubility in water allows it to be made into aqueous
a skier starts from rest at the top of a hill that is inclined at 109deg with respect to the horizontal the hillside is
given that both human cells and pathogens synthesize proteins at ribosomal sites how can antimicrobial agents that
determine the number of grams h2 formed when 2500 ml of 0743 m hcl solution reacts with 341 x 1023 atoms of fe
a 2130 satellite used in a cellular telephone network is in a circular orbit at a height of 800above the surface of the
construct a born haber cycle for the formation of the hypothetical compound nacl2 where the sodium ion has a 2 chargea
an earth satellite moves in a circular orbit with an orbital speed of 6300find the time of one revolution of the
which of the following is a product of the krebs cyclea 2 fadh 2b 4 co2c 6 nadhd 2 atpe all are products of krebs
a 120-v motor has mechanical power output of 260 hp it is 850 efficient in converting power that it takes in by
suppose you have a solution of acid hf with concentration of 0003m what would the concentration of h and f- be at