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nutrition experts recommend that you drink at least 8 cups of water daily if your local water supply contains 100 part
an airplane weighing 25 metric tons leaves ground and flies to a height of 36000 feet and attains a velocity of 575
tetraphosphorus decaoxide reacts with water to form phosphoric acid a major industrial acid in the laboratory the oxide
the density of water at room temperature is 09970g cm-3 how many lbs does the water in a full 500 gal
a tanker has spilled 100 x 104 l of oil into the ocean and the oil film covers the sea with a layer of 30 x 102 nm
titanium iv oxide tio2 is heated in hydrgoen gas to give water and a new titanium oxide tio if 1598 g of tio2 produces
a 05118g sample of caco3 is dissolved in a 12 m hcl and the resulting solution is diluted to 2500ml in a volumetric
the reaction ch33 cbr oh------ch33 cohbr in a certain solvent is first order with respect to ch33 cbr and zero order
if a weak acid ha is 3 dissociated in a 025 m solution calculate the ka and ph of the
how much heat energy is required to raise the temperature of 0368kg of copper from 230 degrees celcius to 600 degrees
draw a lewis structure that obeys the octet rule for each of the following anions assign lone pairs radical electrons
1- whats the exact alkalinity of a water that contains 06580 mgl of bicarbonate as the ion at ph of 5662- would you
the diameter of a neutral helium atom is about 10 multiplied by 102 pm suppose that we could line up helium atoms side
upon decomposition one sample of magnesium fluoride produced 166 kg of magnesium and 257 kg of fluorine a second sample
magnesium metal reacts with hcl solution liberating h2 gas and generating mg2 cations in solution a 2890-g sample of mg
the fastest qualifying speed in the history of the indianapolis 500 was 236986 mph set by arie luyendyke in 1996
as air flows across the cooling coil of an air conditioner at the rate of 3856 kghr its temperature drops from 26c to
quinone a chemical used in the dye industry and in photograpgy is an organic compund containing only c h and o what is
two students are asked to measure the dimensions of the same cylindrical bottle in order to see if it will hold 75 cm3
a sample of limestone and other soil materials is heated and the lilmestone decomposes to give calcium oxide and carbon
the solubility of mnso4 monohydrate in water at 20deg c is 700g per 1000 ml of water a solution at 20deg c that is 422m
how abundant are tryptophan and cysteine in proteins and what characteristics of these amino acids affect their
a compound contains only c h and n combustion of 315 mg of the compound produces 302 mg co2 and 370 mg h2o what is the
a 45 kg sample of water absorbs 345kj of heat if the water was initially at 221c what is its final
since 1976 brazil has made it mandatory that all automobiles run on a blend of 25 ethanol and 75 hydrocarbon based