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explain how dissolving the group iv carbonate precipitate with 6m ch3cooh followed by the addition of extra acetic acid
chromium iii hydroxide is highly insoluble in distilled water but dissolves readily in either acidic or basic solution
an inductor is to be made by wrapping wires around a paper tube of radius 0702 cm and length 844 cm how many turns will
a what is the escape speed on a spherical asteroid whose radius is 241 km and whose gravitational acceleration at the
some species of bacteria can oxidize nitrite to nitrate using the energy released by the transfer of electrons to drive
physicians use a machine called a spirometer to measure the maximum amount of air a person can exhale called the
the pressure of air in your house can stay constant during the day if the temperature rises let the temperatures be
3 6 m hno3 could not be found on the reagent shelf instead 6 m hcl is added to the test solution instead 6 m hcl is
observe yourself breathing and count the number of times you inhale per second during each breath you probably inhale
click on the blue cepheid label then click the label on the bottom of the interactive figure that reads cepheids as
m nh3 a basic solution cannot be found on the reagent shelf but 6 m naoh also a base is available what would be
a solenoid has a cross-sectional area of 70 x 10-4 m2 consists of 430 turns per meter and carries a current of 052 a a
two long conducting cylindrical shells are coaxial and have radii of 20 mm and 80 mm the electric potential of the
a uniform magnetic field of 25 mt magnitude points in the direction of lt00-1gt there is a wire that is 14m long and
if a reference solution is made acidic instead of basic how would this change the composition of a precipitate and test
a pendulum of length 20 m is held out to point a see diagram below at the vertical position an overhang effectively
fess dissolves by the addition of hno3 in a manner similar to that of cuss in the process the fe2 ion is oxidized to
a meter stick balances horizontally on a knife-edge at the 500 cm mark with two 500 g coins stacked over the 60 cm mark
a solution with a weak acid was tested with the indicators in this experiment the colors observed were as follows-
a small solid sphere with radius 025 cm and mass 070 g rolls without slipping on the inside of a large fixed hemisphere
what is the best way to isolate the compound of 1245-tetrachlorobenzene o-toluic acid and
at the instant of the figure a 14 kg particle p has a position vector r of magnitude 11 m and angle 1 45deg and a
if 724 kj of heat is supplied to a 862 g block of metal the temperature of the metal increases by 93degc calculate the
a gas is compressed during which 400 j of p-v work is done on the gas at the same time it absorbs 150 j of heat from
a spool whose inner core has a radius of 100 cm and whose end caps have a radius of 150 cm has a string tightly wound