2023
Chemistry
POST UTME
Which of the following substances in water causes furring of kettles?
A.
CaCO
B.
Na CO
C.
Ca(HCO )
D.
CaCl
Correct Answer: Ca(HCO )
Explanation
Even though the fur noticed in kettles is usually CaCO , furring is due to the presence of Ca(HCO ) in water. This compound decomposes to give CaCO, Ca(HCO ) ->CaCO + H O + CO
Even though the fur noticed in kettles is usually CaCO , furring is due to the presence of Ca(HCO ) in water. This compound decomposes to give CaCO, Ca(HCO ) ->CaCO + H O + CO
THIS WEEK's
Latest Articles
Top-Scorer Okoro Uchechukwu Solomon Reveals How He Scored 337 in JAMB
by samuel olalekan adeyemi
Bouncing Back: How Samuel Isaac Overcame Setbacks to Score 265 in JAMB and What He Learned
by samuel olalekan adeyemi
Managing Stress During Exams: Practical Tips for Students
by samuel olalekan adeyemi
