<span><span>4.2×1022</span>NA</span><span> N_{A} is the avagadro number</span>
'aq' represents 'aqueous', meaning 'dissolved in water'.
Be careful, being dissolved in water is different than 'l' , or liquid. Liquid means a substance is in liquid phase, not dissolved in water.
<u><em>Answer:</em></u>
<u><em>Pressure increases as the depth increases. The pressure in a liquid is due to the weight of the column of water above. Since the particles in a liquid are tightly packed, this pressure acts in all directions. For example, the pressure acting on a dam at the bottom of a reservoir is greater than the pressure acting near the top.</em></u>
<u><em>Explanation:</em></u>
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which level are u on now?
