Fill in the Blanks Question 36Online version Acidic , basic and amphoteric by CHUA BI YUN Moe 1 2HCl 3H2O 2MgO MgO NaOH H2 + ? MgCl2 + 2 3H2 NaOH 6HCl 2H2O 2AlCl3 Al2O3 + ? + 3 3H2O 2H2O 2NaAl HCl 3NaOH 2NaOH Al2O3 + + ? ( OH ) 4 4 HCl 2H2O 2NaOH 3NaOH Na2SO4 H2 SO3 + ? +