(A) Write plausible chemical equations to represent the (a) Roasting of Cu 2 S; (b) Reduction of...

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(A) Write plausible chemical equations to represent the 

(a) Roasting of Cu2S;

(b) Reduction of WO3 with H2(g);

(c) Thermal decomposition of HgO to its elements.

(B) Write chemical equations to represent the 

(a) Reduction of Cr2O3 to chromium with silicon as the reducing agent; 

(b) Conversion of Co(OH)3(s) to Co2O3(s) by roasting; 

(c) Production of pure MnO2(s) from MnSO4(aq) at the anode in an electrolysis cell.

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General Chemistry Principles And Modern Applications

ISBN: 9780132931281

11th Edition

Authors: Ralph Petrucci, Jeffry Madura, F. Herring, Carey Bissonnette

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