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write the empirical formula of at least four binary ionic compounds that could be formed from the following ions ca2
a solenoid of radius 45 cm has 600 turns and a length of 15 cma find its inductancemhb find the rate at which current
at elevated temperatures sbcl5 gas decomposes into sbcl3 gas and cl2 gas as shown by the following equationsbcl5ltgt
make a drawing of a metal rod that has length 12cm and a total mass of 70g including two metal loops at both ends which
when solid carbon dioxide gas at 1160 k were put into a rigid 2 l container and the reaction shown below occurredc co2
an intergalactic rock star bangs his drum every 150 s a person on earth measures that the time between beats is 270 s
a 03 kg apple falls from rest through a height of 40 cm onto a flat surface upon impact the apple comes to rest in 01 s
consider a 020 m nh3020 m nh4ci bufffer 0002500 mol of hci is added to 650 ml of the buffer how many moles of nh3 and
you have four identical resistors each with a resistance r you are asked to connect these four together so that the
a gold prospector finds a solid rock that is composed solely of quartz and goldthe total mass and total volume of the
the molar solubility of pbio32 in a 010 m naio3 solution is 24x10-11 moll what is kspfor
two 500 g spheres with equal positive charges are suspended by 100 cm long strings in a uniform electric field e 200 x
assume the solubility product mgoh2 is 17 x 10-11 at a certain temperature what minimum oh- concentration must be
a 04088 g sample of a monoproticacid neutralizes 164 ml of 008133 m koh solution calculate the molar mass of the
the secondary coil of a transformer provides the voltage that operates a food blender if the turns ratio of the
two solutions are mixed together a solutions containing 00032 moles of hno3 and a solutions containing 000421 moles of
a radiator has an emassivity of 90 and its exposed area is 123 m2 the temperature of the radiator is 100 degrees c and
the magnitude and direction of acceleration of body both are constant will the body moves in straight
2 mn04- 5 s032- 6 h uml 2 mn2 5so 42- 3 h20which of the following statements is true regarding the reaction given
two moles of ideal gas at atmosperic pressure 20 degree celcius is confined to a closed container of volume 445 liter
in which of the following equilibria would the concentrations of the products be increased if the volume of the system
if the fundmental source of a sound wave is a vibrating object what is the fundamental source of an electomagnetic
carbon disulfide n 163 is poured into a container made of fused quartz n 146 what is the critical angle for internal
the acid dissociation constant for hclo is 30 x 10-8 what is the hydrogen ion concentration in a 012 m solution of
an object placed 100 cm from a concave spherical mirror produces a real image 800 cm from the mirror if the object is