In the conversion of TiO2 to Ti(s), designate what is oxidized and what is reduced in each step:TiO(s) + 2C(s) + 2Cl2(g) + ∆ ---> TiCl4(g) + 2CO(g)TiCl4(g) + 2Mg(l) + ∆ ---> Ti(s) + 2MgCl2(l)What role does Mg play in this process?

Chemistry & Chemical Reactivity
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Chapter5: Principles Of Chemical Reactivity: Energy And Chemical Reactions
Section5.5: Enthalpy Changes For Chemical Reactions
Problem 2RC: 2. For the reaction 2 CO(g) + O2(g) → 2 CO2(g). ∆rH° = −566 kJ/mol-rxn. What is the enthalpy change...
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In the conversion of TiO2 to Ti(s), designate what is oxidized and what is reduced in each step:

TiO(s) + 2C(s) + 2Cl2(g) + ∆ ---> TiCl4(g) + 2CO(g)

TiCl4(g) + 2Mg(l) + ∆ ---> Ti(s) + 2MgCl2(l)

What role does Mg play in this process?

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