This form of assessment is often referred to as evaluation (see section below on Assessment versus Evaluation). Learner assessment represents a particular type of educational assessment normally conducted by teachers and designed to serve several related purpose (Brissenden and Slater, n.d.).
the formula of borax is Na2B4O7Â·10H2O or alternatively to make the structure more explicit, Na2[B4O5(OH)4]Â·8H2O. It is usually called sodium tetraborate decahydrate or diso â¦ dium tetraborate decahydrate. Liam Frayne.
Ingredients Borax or sodium tetraborite decahydrate, is a naturally occurring mineral composed of sodium (salt), boron, (a primary element in almost everything), oxygen, and water.The powdered form of borax used in cleaning is the dehydrated version.lthough Borax is a naturally-occurring substance, it still must be used with caution, sodium borate a component of Borax when enters the human body becomes boric acid, which ingested in large amounts has been proven to cause reproductive abnormalities.