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Write the equations for the reactions in...

Write the equations for the reactions involved in the leaching of alumina from bauxite ore.

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`Al_(2)O_(3)(S) + 2NaOH(aq) + 3H_(2)O rarr 2Na[Al(OH)_(4)](aq)`
`2Na[Al(OH)_(4)](aq) + 2CO_(2)(g) rarr Al_(2)O_(3).xH_(2)O(S) + 2NaHCO_(3)(aq)`
`Al_(2)O_(3)x.H_(2)O(S) rarr Al_(2)O_(3)(S) + xH_(2)O(g)`
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