2025 WAEC CHEMISTRY: WAEC GCE 1st SERIES CHEMISTRY ANSWERS (1648)
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Welcome to official 2025 Chemistry WAEC answer page. We provide 2025 Chemistry WAEC Questions and Answers on Essay, Theory, OBJ midnight before the exam, this is verified & correct WAEC Chems Expo. WAEC Chemistry Questions and Answers 2025. WAEC Chems Expo for Theory & Objective (OBJ) PDF: verified & correct expo Solved Solutions, WAEC GCE 1st SERIES CHEMISTRY ANSWERS. 2025 WAEC EXAM Chemistry Questions and Answers
(5a) Hardness of water can be defined as water that has high mineral content. The hardness of water is formed when water percolates through deposits of limestone, chalk, or gypsum which are largely made up of calcium and magnesium carbonates, bicarbonates, and sulfates. Iron oxides or iron carbonates can give a reddish-brown coloration to hard water deposits. (5aii) (i) Calcium ions in the water are good for children's teeth and bones. (ii) It helps to reduce heart disease.
Welcome to official 2025 Chemistry WAEC answer page. We provide 2025 Chemistry WAEC Questions and Answers on Essay, Theory, OBJ midnight before the exam, this is verified & correct WAEC Chems Expo
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