HOW MUCH HEAT IS REQUIRED TO RAISE THE TEMPERATURE OF 10 GRAM OF PIECE OF (AL) FROM 25 OC TO 35 OC (SPECIFIC HEAT CAPACITY OF ALUMINUM = 0.214 CAL/G) 214 14.2 4.12 21.4
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HOW MUCH HEAT IS EVOLVED WHEN 256 G OF 2SO2 (MOLAR MASS = 64 G/MOL) IS BURNED ACCORDING TO THE CHEMICAL EQUATION SHOWN BELOW?HOW MUCH HEAT IS EVOLVED WHEN 256 G OF 2SO2 (MOLAR MASS = 64 G/MOL) IS BURNED ACCORDING TO THE CHEMICAL EQUATION SHOWN BELOW?HOW MUCH HEAT IS EVOLVED WHEN 256 G OF 2SO2 (MOLAR MASS = 64 ...
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A galvanic cell consists of a Cd(_s_)|Cd2+(_aq_) half-cell and a Zn(_s_)|Zn2+(_aq_) half-cell connected by a salt bridge. Reduction occurs in the cadmium half-cell. The cell can be represented in standard notation as Cd(_s_)|Cd2+(_aq_) || Zn(_s_)|Zn2+(_aq_ Zn(_s_)|Zn2+(_aq_) || Cd(_s_)|Cd2+(_aq_ (Zn(_s_)|Zn2+(_aq_) || Cd2+(_aq_)|Cd (s Cd2+(_aq_)|Cd(_s_) || Zn(_s_)|Zn2+(_aq_
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Using these metal ion/metal standard reduction potentials Zn2+(aq)|Zn(s) , Eo = -0.76 Ni2+(aq)|Ni(s) , Eo = -0.25 Calculate the standard cell potential for the cell whose reaction is (Ni2+(aq) + Zn(s) ↔ Zn2+(aq)+ Ni(s 0.51+ 1.01- 1.01+ 0.51-
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Which of the following statements is FALSE? (a) Oxidation and reduction half-reactions occur at electrodes in electrochemical cells. (b) All electrochemical reactions involve the transfer of electrons. (c) Reduction occurs at the cathode. (d) Oxidation occurs at the anode. (e) All voltaic (galvanic) cells involve the use of electricity to initiate nonspontaneous chemicalreactions.
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In an electrolytic cell the electrode at which the electrons enter the solution is called the ______ ; thechemical change that occurs at this electrode is called _______. (a) anode, oxidation (b) anode, reduction (c) cathode, oxidation (d) cathode, reduction (e) cannot tell unless we know the species being oxidized and reduced.
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