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Write balanced chemical equations for these metallurgical processes. Enter the species with coefficients, but if the coefficient is one, leave it off (implied 1). Include phase in parentheses.

1) Co3O4 is chemically reduced by Al metal. List the Co-containing species first on both sides of the equation.

2) MnO2 is reduced by coke. List the Mn-containing species first on both sides of the equation.

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