<Li> sodium tetraborate pentahydrate, Na B O 5H O </Li> <Li> sodium tetraborate decahydrate, Na B O 10H O </Li> <P> Borax is generally described as Na B O 10H O. However, it is better formulated as Na (B O (OH)) 8H O, since borax contains the (B O (OH)) ion . In this structure, there are two four - coordinate boron atoms (two BO tetrahedra) and two three - coordinate boron atoms (two BO triangles). </P> <P> Borax is also easily converted to boric acid and other borates, which have many applications . Its reaction with hydrochloric acid to form boric acid is: </P>

How many boron atoms are in a molecule of borax (na2b4o7·10h2o)
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