Answer:
Aqueous carbon dioxide, CO2 (aq), reacts with water forming carbonic acid, H2CO3 (aq). Carbonic acid may loose protons to form bicarbonate, HCO3- , and carbonate, CO32-. In this case the proton is liberated to the water, decreasing pH. The complex chemical equilibria are described using two acid equilibrium equations.
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Answer:
Overuse injuries of the hand.
Obesity.
Muscle and joint problems.
Eyestrain.
Behavioural problems including aggressive behaviour.
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