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al2o3 ba oh 2
al2o3 + ca oh 2
al oh 3 + ca oh 2
al + ca oh 2 + h2o
al2o3 to al oh 3
al2 so4 3 + ca oh 2
al oh 3 al2o3 + h2o
al2o3 + c
al + o2 - al2o3
al+02 al2o3
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