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Identify the atoms that are oxidized and reduced, the change in oxidation state for each, and the oxidizing and reducing agents in each of the following equations:
a) Mg(s) + NiCl2(aq) ? MgCl2(aq) + Ni(s)
b) PCl3(l) + Cl2(g) ? PCl5(s)
c) C2 H4(g) + 3O2(g) ? 2CO2(g) + 2H2 O(g)
d) Zn(s) + H2 SO4(aq) ? ZnSO4(aq) + H2(g)
e) 2K2 S2 O3(s) + I2(s) ? K2 S4 O6(s) + 2KI(s)
f) 3Cu(s) + 8HNO3(aq) ? 3Cu(NO3)2(aq) + 2NO(g) + 4H2 O(l)
what is the major product formed from the Reaction of (3S)-3-bromo-2,3-dimethylpentane
A 100.mL sample of 0.200 M aqueous hydrochloric acid is added to 100.mL of 0.200 M aqueous ammonia in a calorimeter whose heat capacity excluding any water is 480.J/K. The subsequent reaction occurs when the two solutions are mixed.
What half-reaction will occur at the anode in the electrolysis of an aqueous solution of gallium chloride (GaCl3)
a. glucose is present in bacterial cells at a concentration ofabout 1 mm. what is the concentration of glucose
A half-cell, made by dipping a silver wire into 0.05 M aqueous AgNO, at 298 OK, develops a half-cell potential of +0.740 volts. What is the standard half-cell (Eo) for silver?
the molar volume of a certain solid is 161.0 cm3 at 1 atm and 350.75 k its melting temperature. the molar volume of the
what must be the pH of a buffered solution saturated with H2S ([H2S]=0.10M) be in order to precipitate PbS leaving [Pb2+]=1*10^-6M without precipitating any MnS
along with the weight of sodium acetate (4.01g) and the volume of acetic acid used (10mL) to prepare the buffer, the expected pH of it was 5.43. What is the expected pH of buffer plus added HCl?
What is the pH at the equivalence point when when 40.0 mL of 0.183 mol/L HC7H5O2(aq) is titrated with 0.131 mol/L NaOH(aq)? Assume the temperature is 25oC
Write balanced equations showing how three of the common strong acids given below ionize to produce hydrogen ion.
What is the equilibrium partial pressure of NH3 in atm?
Why is toxicity diminished in other congeners where chlorines are removed from the 2,3,7,8 positions, or when chlorines are added to remaining positions on the rings?
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