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Sulfide precipitates are usually grouped as sulfides insoluble in acidic solution as well as sulfides insoluble in basic solution. Define why there is a difference between the two groups of sulfide precipitates.
Suggest a simple chemical test that would distinguish between the following compounds. State what you would see: a) n-pentane and 1-pentene
when carbon is burned in the presence on oxygen the carbon and oxygen combine to produce carbon dioxide. if you start
adrenaline is the hormone that triggers release of extra glucose molecules in times of emergency or stress. a solution
What is the concentration of free [Cu2+] in an aqueous solution prepared as 0.25M in Cu2+ and 1.50M [NH3]. Cu2+(aq) + 4NH3? [Cu(NH3)4]2+ (aq) Kf = 5.0 x10^12
relative orientations (up and down) of the two Me groups to one another. Designate each isomer as cis or trans and also indicate if it is chiral or not. indicate the one isomer that dose not have a plane of symmetry but is not chiral.
the suspended solid content of a 1-litre river water sample is 20 mglitre. assume that material all organic carbon and
4.6102nbspml of 0.028 m agno3nbspand6.2102nbspml of 0.018 m na2co3nbsparemixed together. ksp for silver carbonate is
Calculate the energy of an electron in the hydrogen atom when n = 2 and calculate the energy of an electron in the hydrogen atom when n = 6.
Calculate the probability of finding the electron in a spherical shell defined by 10.95a0 ? r ?11.05a0
The atmospheric pressure in the room when the measurement was made was 628 mmHg and the temperature was 36.0 degrees C. What is the density of the gas?
a solution is made by dissolving 10.20 grams of glucose c6h12o6 in 355 grams of water. what is the freezing-point
9.780 grams of gaseous mixture contains ethane ,C2H6 and propane ,C3H8. it needs 1.120mol of oxygen when complete combustion to form CO2 and H2O. Compute the mass percent of C2H6 in the original mixture.
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