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The teeth are protected by a hard enamel layer, which is composed of a mineral called hydroxyaptite, Cas(PO4)3OH. Hydroxyaptite dissolves in saliva, as shown in the following equation: Caş(PO4),OH() → 5C2²*(aq) + 3PO,³¯ (aq) + OH¯(aq) In adults, this process is balanced by the reverse process. (In other words, it is an equilibrium.) When you eat, food is broken down by bacteria, and acids are produced. These acids react with the hydroxide ion to form water. Explain why this reverse process promotes tooth decay.

The teeth are protected by a hard enamel layer, which is composed of a mineral called hydroxyaptite, Cas(PO4)3OH. Hydroxyaptite dissolves in saliva, as shown in the following equation: Caş(PO4),OH() → 5C2²*(aq) + 3PO,³¯ (aq) + OH¯(aq) In adults, this process is balanced by the reverse process. (In other words, it is an equilibrium.) When you eat, food is broken down by bacteria, and acids are produced. These acids react with the hydroxide ion to form water. Explain why this reverse process promotes tooth decay.

Chemistry for Engineering Students
Chemistry for Engineering Students
4th Edition
ISBN:9781337398909
Author:Lawrence S. Brown, Tom Holme
Publisher:Lawrence S. Brown, Tom Holme
Chapter12: Chemical Equilibrium
Section: Chapter Questions
Problem 12.107PAE
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The teeth are protected by a hard enamel layer, which is composed of a mineral called hydroxyaptite, Caş(PO4)3OH. Hydroxyaptite dissolves in saliva, as shown in the following equation: Caş(PO4);OH(s) → 5C2² + 3PO,³¯ (aq)' In adults, this process is balanced by the reverse process. (In other words, it is an equilibrium.) When you eat, food is broken down by bacteria, and acids are produced. These acids react with the hydroxide ion to form water. Explain (aq) + OH¯(aq) why this reverse process promotes tooth decay.
Transcribed Image Text:The teeth are protected by a hard enamel layer, which is composed of a mineral called hydroxyaptite, Caş(PO4)3OH. Hydroxyaptite dissolves in saliva, as shown in the following equation: Caş(PO4);OH(s) → 5C2² + 3PO,³¯ (aq)' In adults, this process is balanced by the reverse process. (In other words, it is an equilibrium.) When you eat, food is broken down by bacteria, and acids are produced. These acids react with the hydroxide ion to form water. Explain (aq) + OH¯(aq) why this reverse process promotes tooth decay.
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