A) How is tooth decay related to pH how can it be prevented
B) why we need to balance a chemical equation

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Solution

A.When the pH of our mouth is lowered, the conditions for bacteria become optimum for growth. This leads to tooth decay.
B. An equation should be balanced because it should have equal number of mass and atoms on both the sides (reactants and products). This is related to law of conservation of mass.

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Q. How is tooth decay related to

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Q. (a) Explain the pH change as the cause of tooth decay. How can tooth decay caused by pH change be prevented?
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A) How is tooth decay related to pH how can it be prevented B) why we need to balance a chemical equation

A) How is tooth decay related to pH how can it be prevented
B) why we need to balance a chemical equation