Combine the reactions provided to find the overall balanced reaction and calculate the value of the enthalpy for the overall reaction. Concept introduction: Extracting a metal from ore requires three main steps: (1) concentration of the ore, and if necessary, chemical treatment prior to reduction; (2) reduction of the mineral to the free metal; (3) refining or purification of the metal. Roasting is the process of heating the sulfide minerals in air (O 2 ) to form metal-oxides Metal-oxides will undergo reduction with carbon, hydrogen, or a more active metal. The most active metals must be reduced by the process of electrolysis . A blast furnace is used in the production of commercial iron which extracts iron from iron ore. To classify: The balanced reaction and the value of ?H°.

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Chapter 21, Problem 21.54SP

Interpretation Introduction

Interpretation:

Combine the reactions provided to find the overall balanced reaction and calculate the value of the enthalpy for the overall reaction.

Concept introduction:

Extracting a metal from ore requires three main steps: (1) concentration of the ore, and if necessary, chemical treatment prior to reduction; (2) reduction of the mineral to the free metal; (3) refining or purification of the metal.

Roasting is the process of heating the sulfide minerals in air (O₂) to form metal-oxides
Metal-oxides will undergo reduction with carbon, hydrogen, or a more active metal.
The most active metals must be reduced by the process of electrolysis.
A blast furnace is used in the production of commercial iron which extracts iron from iron ore.

To classify: The balanced reaction and the value of ?H°.

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