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