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which of the following is an accurate comparison of the properties of nitrogen and oxygen a nitrogen uses more
flask a has a volume of 050 l and contains 50 g of a volatile liquid flask b has a volume of 135l and contains 348 g of
find a parametric representation for the plane that passes through the point 2 2 1 and contains the vectors i j k and
what is the lewis structure for nbr3 how many electron pairs in the central atom of nbr3 how many bonding electrons
a pure substance can exist simultaneously as a solid liquid and vapor only at 1 the critical point 2 at the triple
what is the functional group that is common to all amino acids ester nitrile amide nitrogen
a phase diagram would be useful in determining 1 melting point 2 boiling point 3 triple point 4 vapor pressure 5 all of
a shelf containing several chemicals salicylic acid 4-4-hydroxyphenylbutan-2-one aka raspberry ketone and
you want to convert 5 ml of 3-methyl-2-butanol to 3-methyl-2-butene by an acid catalyzed dehydration in order to
r-2-bromobutane is reacted with a solution of nai however the label is blurry and it is unclear what solvent the nabr
calculate the yield for the following reaction based on the results regarding the synthesis of 2-iodooctane from
the solubility of caffeine in water in 22mgml at 25c and 670 mgml at 100c how many ml of boiling water would it take to
at room temperature benzoic acid dissolves in the less polar solvent ether but not very much in the more polar solvent
you are hard at work separating diethyl ether and toluene by simple distillation your lab partner unfortunately spills
you have a mixture of solids in the ratio of 503 for a b you are planning to use the technique of recrystallization to
you have synthesized a new compound the crude product melts at 102-106 degrees c you spend a little time purifying it
which of the following polymers is a condensation polymer -teflon -polystyrene - polyvinylchloride -polypropylene
what is the empirical formula of a compound that contains 494 k 203 s and 303 o by
part a - what volume of 225m hcl in liters is needed to react completely with nothing left over with 0250l of 0300m
what volume ml of a concentrated solution of magnesium chloride 900 m must be diluted to 350 ml to make a 275 m
aqueous hydrochloric acid reacts with zinc metal to yield hydrogen gas and aqueous zinc chloride write a net ionic
of the substances below the highest fuel value is obtained from charcoal bituminous coal natural gas hydrogen
if 1000ml water of at 500c is added to 1000 ml of water at 200c what temperature would the mixture of water reach
what kinds of compounds are suitable to be separated and analyzed by tlc gases volatile liquids solids two of the
what are the respective concentrations m of mg2 and c2h3o2- afforded by dissolving 0600 mol mgc2h3o22 in water and