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the molar heat capacity at constant volume of a metal at low temperatures varies with the temperature according to the
the number of moles and the mass of magnesium carbonate mgco3 required to produce 283 g of carbon dioxide mgo is the
potassium sulfate is commonly used in fertilizers an agricultural researcher in alaboratory measures and weighs a
consider the following balanced equationc3h7shl 6o2g rarr 3co2g so2g 4h2ogwhen 150 g of so2 is produced what is the
what are the ngss crosscutting concepts between ioniccovalent
can you please describe each question and why the answer is that 1 what is the strongest metal 2 the strongest alloy 3
two thin concentric spherical shells of radius 005 m and 015 m respectively have their annular cavity filled with
a solid cylindrical copper rod 010m long has one end maintained at a constant temperature of 20 k the other end is
1 what is the boiling point of a solution produced by adding 370nbspgnbspof cane sugar molar mass 3423nbspgmol to
a cylindrical metal can blackened on the outside 010m high and 005m in diameter contains liquid 4he at its normal
imagine you are performing a calorimetry experiment using a constant-pressure calorimeter first you calibrate the
a copper wire of length 1317m and diameter 326 x 10-4nbspm is blackened and placed along the axis of an evacuated glass
the solar constant is the incident energy per unit of time on a unit area of a surface placed at right angles to a
for this question imagine that sea water is a 35 mass solution of nacl with a density of 100gml assume full
pyridine c5h5n is a weak base pkb 874 with an unpleasant sweet fishy odour in a titration 1750ml of pyridine solution
a stream of air moves with a speed w assume that a mass m of air is stopped adiabatically by an obstaclea prove that
lactic acid c3h603 which occurs in sour milk sauerkraut and sore muscles is weak monoprotic acid ka 000014a calculate
what is the most likely protonation product of 2-pyrone 1 lone electron pairs are not shown explicitly a b c d or
a vertical tank of length greater than 076 m has its top end closed by a tightly fitting frictionless piston of
mercury is poured into the open end of a j-shaped glass tube which is closed at the short end trapping air in that end
draw diagrams to show the various orientations in which a p orbital and a d orbital on adjacent atoms may form bonding
a teacher interested in determining the effect of a new computer program on learning to read conducted a study one
determine the kc expression for the reaction above by identifying what belongs in the numerator and what belongs in the
1 a buffer system contains 018nbspmnh4nbspand 014nbspmnbspnh3nbsppkanbspofnbspnh4nbspis 925 how many moles