Question

The silicate anion in the mineral kinoite is a chain
of three SiO4^4- tetrahedra, that share corners with
adjacent tetrahedra. The charge of the silicate anion
(1)-4
(3) -6
(2) -8
(4) -2

Answer 1

Answer:the charge of the silicate anion is-4

Explanation:

The building block of all of these minerals is the silica tetrahedron, a combination of four oxygen atoms and one silicon atom. These are arranged such that planes drawn through the oxygen atoms form a tetrahedron . Since the silicon ion has a charge of +4 and each of the four oxygen ions has a charge of –2, the silica tetrahedron has a net charge of –4.