JAMB - Chemistry (1979 - No. 37)

Two metallic ions associated with hard water are

copper and zinc

magnesium and silver

calcium and magnesium

potassium and tin

sodium and lead

Смхиман (0)

Сурталчилгаа

Javascript-д энэ хуудсыг зохих ёсоор ачаалахыг зөвшөөрнө үү