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.
Borax (the special soap that is our second chemical) is a mineral, made of âsodium borateâ monomers in a crystalline structure, which is ground into a powder. Since both the borax and the glue are first mixed with water, when you combine the two, they interact through hydrogen (water) bonding. The glue and the borax mix together to create the slime, which is a matrix polymer, rather than a linear polymer (e.g. glue alone).