What is the greatest difference in hydrogen and hydroxide ions?

H+ is positive and OH- is negative. When you put the charge with the name, it becomes quite clear. Only on certain occasions can hydrogen atoms become negatively charged but hydrogen usually loses electrons.

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air enters through the nose, moves through the nasal cavity, the pharynx, the larynx, enters the trachea, moves through the bronchi andbronchioles till the alveoli.