Question

galera pfvr eu preciso dessas questões hj pfvr

Answer 1

1=a sal e agua
2=(a=II $CA(OH)_{2}$)
(b=I NAOH)
(c=III $Mg(OH)_{2}$)
(d=IV  $NH_{4} OH$)
alternativa (a)
3= a($CaCl_{2}$ e $Mg(OH)_{2}$