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finely divided sulfur ignites spontaneously in fluorine gas to produce sulfur hexafluoride as in the following
the reaction between nitric oxide no and oxygen to form nitrogen dioxide no2 is a key step in photochemical smog
calculate the number of moles of ethanol c2h6o in 2500 ml sample ethanol has a density of 076
when heated to 150 degree celsius cuso4middot 5h2o loses its water of hydration as gaseous h2o a 273 g sample of the
when sulfuric acid is a component of polluted air it chemically attacks statues memorials and monuments made from
according to the laws of probability the chance of two independent events occurring simultaneously is which of the
a chemistry experiment requires 252g of silver nitrate how many grams of a 155 by mass solution of silver nitrate
a 297 g mixture of the compounds magnesium oxide and potassium chloride is 577 by mass magnesium oxide the compound
the fuel used in many disposable lighters is liquid butanec4h10 how many carbon atoms are in 150 g of
an aqueous solution of hydrogen peroxide h2o2 is 300 by mass and has a density of 111gml what is the molarity of h2o2
the co2 exhaled by astronauts must be removed from the spacecraft atmosphere one way to do this is with solid liohco2g
complete the reaction write the equation as a balanced equation complete ionic equation and net ionic equation be sure
approximately 12 million kilograms of phosphoric acid h3po4 are produced annually for fertilizers detergents and agents
-- 243 g of magnesium yield 403 g mgo upon combustion with oxygen how much magnesium needs to be burned to yield 121 g
the solubility of benzoic water in acid at 0 degrees c is 90gm100ml in a recrystallization of benzoic acid 225gm
calculate the volume of a 0122 m potassium permanganate solution needed to react with a second 150 ml sample of the
a first order reaction has an activation energy of 592 kjmol and a frequency factor arrhenius constant of 913 x 1013
a student weights out 1000 g of iron ii ammonium sulfate hexahydrate mw 39214 gmol what is the minimum amount in ml of
consider the reaction cog 3h2g ch4g h2og with kc41 x 105 at 773 k the following amounts of substances are added to a
in 2008 carbon dioxide levels at the south pole reached 385 parts per million by volume the 1985 reading was 3146 ppm
a solution of 085 g of an organic compound in 1000 g of benzene has a freezing point of 516c what is the molality of