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For each of the following reactions indicate which substance is oxidized and which reduced. Which substance is the oxidizing agent and which is the reducing agent?
2Al(s) + 3Cl2(g) ----> 2AlCl3(s)
8H+(aq) + MnO4-(aq) +5Fe2+(aq) ----> 5Fe3+(aq) +Mn2+(aq) + 4H2O(l)
FeS(s) + 3NO3-(aq) + 4H+(aq) ----> 3NO(g) + SO42-(aq) +2H2O(l)
A sample of nitrogen gas at 298 k And 745 torr has a volume of 37.42 L. what volume will it occupy if the pressure is increaaed to 119kpA at 345 K
Write the structures for all the aldol condensation products you expect from the cross aldol condensation of 4-methyl benzaldehyde and 2-butanone (methyl ethyl ketone)
calculate the mass of c2h6o2 that must be added to 1.00 kg of ethanol c2h5ohto reduce its vapor pressure by 13.2 torr
Hydrogen gas was cooled from 150C to 50 C. It's new volume is75 mL. What was it's original volume?
question calculate the energy in the form of heat in kj required to change 75.0 g of liquid water at 27.0 c to ice at
How many (a) kilometers, (b) Meters (c) centimeters, ad (d) millimeters are there in 0.800 miles calcuted to the correct numbers of significant figures
Calcium chloride (CaCl2; very soluble) has been sold as a more effective de-icer than NaCl to spread on icy sidewalks. What would be the ionic strength of a solution
Calculate the acid dissociation constant Ka, for the ammonium ion (NH^4+); Kb for NH3 is 1.8 x 10^-5
what mass of magnesium in reaction with an excess of hydrochloric acid is needed to produce 128 ml of hydrogen h2 gas?
osmium has a density of 22.6 g/cm3. what volume (in mL) would be occupied by a 21.8 g sample of osmium?
Why are the crude ester mixtures washed with aqueous NaHCO3?2. You wish to test 9 esters for antitumor activity. One and only one of the 9 esters will actually have antitumor activity. You will prepare the esters from an alcohol and an acid as was..
The Ka of cyanic acid, HOCN is 3.5 x 10-4. Calculate the pH of a 0.804 M solution of HOCN? Assume you do not have to use the quadratic formula
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