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Set 16 — Water — Water Hardness
Set 16 — Water — Water Hardness
10 questions · 📖 Tutor Mode · ⏱ 15 min
📖 Tutor Mode
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Water — Water Hardness
1 / 10
WAEC 2018
Temporary hardness of water is caused by:
A.
Dissolved Ca(HCO₃)₂ and Mg(HCO₃)₂
B.
CaSO₄ and MgSO₄
C.
NaCl only
D.
CO₂ only
E.
Dissolved iron
Check Answer