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throughout history arseniciii oxide known simply to the general public as arsenic has been a poison favored by
borazine bh3nh3 is an analog of c6h6 benzene it can be prepared from the reaction of diborane with ammonia with
how to find the equivalent weight of a how to find the equivalent weight of a
a give the names and chemical symbols for the three isotopes of hydrogenb list the isotopes in order of decreasing
the maximum allowable concentration of h2sg in air is 20 mg per kilogram of air 20 ppm by mass how many grams of fes
one method proposed for removing so2 from the flue gases of power plants involves reaction with aqueous h2s elemental
the dissolved oxygen present in any highly pressurized hightemperature steam boiler can be extremely corrosive to its
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a how many grams of h2 can be stored in 1000 kg of the alloy feti if the hydride fetih2 is formedb what volume does
ultrapure germanium like silicon is used in semiconductors germanium of ordinary purity is prepared by the
a the p4p4o6and p4o10 molecules have a common structural feature of four p atoms arranged in a tetrahedron figures does
a sulfuric acid plant produces a considerable amount of heat this heat is used to generate electricity which helps
although the clo4- and lo4- ions have been known for a long time bro4- was not synthesized until 1965 the ion was
a identify the type of chemical reaction represented by the following diagramb place appropriate charges on the species
a one of these structures is a stable compound the other is not identify the stable compound and explain why it is
carbon forms an unusual unstable oxide of formula c3o2 called carbon suboxide carbon suboxide is made by using p2o5 to
a explain the difference between solubility and solubility product constantb write the expression for the
the accompanying graph shows the titration curves for two monoprotic acidsawhich curve is that of a strong acidb what
nitrogen dioxide no2 is the only important gaseous species in the lower atmosphere that absorbs visible lighta write
a reaction that contributes to the depletion of ozone in the stratosphere is the direct reaction of oxygen atoms with
the main reason that distillation is a costly method for purifying water is the high energy required to heat and
the standard enthalpies of formation of clo and clo2 are 101 and 102 kjmol respectively using these data and the
the estimated average concentration of no2 in air in the united states in 2006 was 0016 ppma calculate the partial