Oxygen is soft or hard??????
Answers
Answer:
The oxygen tension under hard or soft, oxygen-permeable contact lenses is calculated. The calculation recognizes delivery of oxygen to the tear fluid under the contact lens by diffusion through the lens material and by entrance of fresh, air-saturated tears at each blink. The results show that oxygen diffusion through the lens material is much more effective than tear pumping in maintaining a useful oxygen tension under the lens.
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Answer:
Oxygen tension under a soft or hard, gas-permeable contact lens in the presence of tear pumping. The oxygen tension under hard or soft, oxygen-permeable contact lenses is calculated.
See the oxgen properties it match with Soft Acids:
"Soft" acids or bases have a low charge to radius ratio, with low oxidation states. They are normally larger ions that are polarizable. In contrast to the primarily ionic interaction of hard acids and bases, soft acids and bases have a significant covalent bonding component to their interaction. For example, I- and S2- are soft bases and low charge density transition metals, such as Ag+, are considered soft acids. Soft acids often include transition metals in the second and third row of the periodic table that have a +1 or +2 charge, as well as late transition metals (especially those in the 4d and 5d series) with filled or almost completely filled d orbitals.
Hence,Its Soft
NOTE:
Hard acids interact more strongly with hard bases than they do with soft bases, and soft acids interact more strongly with soft bases than hard bases.