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Explain the Ion Exchange water Softening
Softening is usually done using a resin (natural or synthetic long chain chemical with a sodium ion attached). When water containing hardness ions is passed through the resin, the hardness ions (Ca, Mg) exchange with Na ions on the resin (thus the resulting water is free of hardness ions but high in sodium).
When the sodium ions on the resin are exhausted, the resin is regenerated using a brine solution (which replaces all hardness ions attached to the resin with Na ions again) and the resin can be used again.
Tendon splices Tendon splices are used to join tendons when continuous prestressed concrete , members require long tendons to achieve continuity. Several types of tendon splic
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contituents of paints
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i would like to get a project done. I have some plans and I need a cost estimate on how much it will cost to get it constructed.
Question In erection of false work, for a rectangular panel inside a false work would it be braced all along two diagonals ? Answer While a rectangular panel is focus to the
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