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the bond energy of no is 632 klmol and that of each n-o bond in n02 is 469kjmol using lewis structures and and the
explain the following statementthe oxygen radical reacts with other substances such as oxygen molecules to produce
you have a pond that has become too acidic from acid rain for survival of your fish what kind of chemical could you add
an element x has a tribromide with the empirical formula xbr3 and a trichloride with the empirical formula xcl3 the
during the conductivity of nacl alcl2and cacl2 by using 10m in each of the three describes the appearance of the
what happens when zinc iodine and acidified water are mixed is there a reaction if a reaction does take place will the
explain why the first ionization energy of transition elements are of similar why does lithium have a much lower first
silver tarnishes in the presence of hydrogen sulfide which smells like rotten eggs and oxygen because of the following
polychlorinated biphenyls pcb are environmental and health hazard they break down very slowly in the environment the
a gas with an initial volume of 240 l at a pressure of 565 mmhg is compressed by a pressure increase of 025 pa what is
a flask contains 200 moles of nitrogen and 200 moles of helium how many grams of argon must be pumped into the flask in
what will dissolve uric acid crystallizations clogging pvc pipes in a commercial hog farm operation surfactant must be
hydrochloric acid is an important commercial acid hydrochloric acid reacts with ammonium hydroxide forming ammonium
show that the hydroxide-ion concentration in an aqueous solution is 1x10-4 m when the hydronium-ion concentration is
a mixture containing 0538 mol heg and 0103 mol arg is confined in a 700-l vessel at 25oc calculate the partial pressure
how many mls of h2 gas collected by water displacement are produced by the reaction of 0500 g of mg metal with an
given the following reaction 2 kclo3s 2kclo3s 3 o2gwhat mass of kclo3 will produce 250ml of o2 gas collected by water
1st questionwhat is the concentration of the na and k if we take 1ml from na 10ppm and 1ml from k 10ppm and dissolved
american airlines has historically manipulated its earning by deferring aircraft maintenance discuss how this behavior
a sample was decomposed in the laboratory and found to have 3867g c 1622g h and 4511g na find the molecular formula of
lead pigments were used in water colour painting which turned black after prolonged to an air pollutant the original
a student finds a rock on the way to school in the laboratory he determines that the volume of the rock is 297 cm3 and
is there any way to reduce the viscosity of water by adding any substance as polymer based viscosity reducing agents
a balloon filled with helium gas occupies 250 l at 25 degrees celcius and 100 atm when released it rises to an atlitude
draw a model showing the aqueous ca2 and cl- ions the ions surrounded by water molecules showing the correct