1) 2)
1) 2K + 2H20 = 2KOH+H2
2) Al2O3 + 6HNO3 = 2Al(NO3)3 + 3H20
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1)

2)
1) 2K + 2H20 = 2KOH+H2
2) Al2O3 + 6HNO3 = 2Al(NO3)3 + 3H20