ExamPlay Light Logo
Нэвтрэх

JAMB - Chemistry (2019 - No. 52)

The two ions responsible for hardness in water are
Ca\(^{2+}\) and / or Mg\(^{2+}\)
K\(^+\) and / or Mg\(^{2+}\)
Ca\(^{2+}\) and / or Li\(^+\)
Ca\(^{2+}\) and / or Na\(^+\)

Смхиман (0)

Сэтгэгдэл бичихийн тулд нэвтэрнэ үү
Сурталчилгаа
BrainBehindX Inc Logo
©2026; Powered by BrainBehindX Inc