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a student is probing a bacterium under the microscope the e coli bacterial cell has a mass of 180 where a femtogram is
when a tank of oxygen gas has a pressure of 43 atmospheres at room temperature 25 degrees c during a fire it was
joe found a mineral sample that merely contained barium carbonate and calcium carbonate baco3 and caco3 a 594 gram
a 10 grams of a highly volatile organic liquid containing only hydrogen along with carbon was placed in a 250 ml flask
find out the density of sulfur trifluoride gas at room temperature and 1 atmosphere pressure1 00022 gramscm32 00057
if a tank of oxygen gas has a pressure of 33 atmospheres at room temperature 25 degrees c during a fire it was
study boyles experiment some nitrogen gas at 1 atmosphere pressure is intent in the left hand side of a j tube when the
when solid lithium metal and diatomic nitrogen gas react spontaneously provide the balanced chemical equation including
explain which of the five cobalt complexes conh35xy where x is one of the five ligands br- cl- f- h2o or nh3 and y is
a give two instances each from metals and nonmetals to support these generalizationsb explain what connection is there
while metal oxides react with water the oxygen usually ends up as the hydroxide ion separate from the metal on the
with any reaction supplies detailed mechanism and explain kinetic and thermodynamic control and please provide ir
1 the rate velocity of a reaction is-a the free energy dissimilarity between products and reactantsb the time it takes
the cliffs of dover are chalk cliffs found along the english channel near dover england the scarborough bluffs are
the absorption spectrum of a solution depicts one peak with maximum absorbance at 528nm compute the energy which is the
1 h2co3 carbonic acid is a polyatomic acid state the equations showing the successive dissociations2 for a 06m nh41
assume 846 mg of a pure diprotic acid this means that the acid is capable of donating two hydrogen ions or protons was
assume the combustion of 550 mg of a substance containing only c and h yields 1859 mg of co2 and 381 mg of h2o an
if a 03146-g sample of a mixture of nacls and kbrs was dissolved in water then the resulting solution required 5360 ml
01505 g of k2c2o4 was weighed out and dissolved in 250 ml of 1 m h2so4 it was than titrated with kmno4 and the
ions with a single electron such as he li2 and be3 are explain by the h atom wave functions with za0 substituted for
according to the subsequent reaction explain how many grams of tetraphosphorus decaoxide are necessary for the complete
a ray of light strikes the a-b interface at 50o angle of incidence the index of refraction a is na120 the angles of
a circular saw blade 0200 m in diameter starts from rest in 600 second it accelerates with constant angular
when responding to sound the person eardrum vibrates about its equilibrium position assume an eardrum is vibrating with