Chemistry
Give an example of a divalent anion and a trivalent cation. Write the formula of the compound formed by their combination.
Related Questions
The valency of an element A is 4. Write the formula of its:
(a) oxide
(b) nitrate
(c) phosphate
Identify the cations (electropositive ions) and anions (electronegative ions) in the following compounds:
(a) CH3COONa
(b) NH4Cl
(c) PbCl2
(d) MgO
Write the Latin names of sodium, mercury and iron.
State the number of atoms present in each of the following:
(a) PO43-
(b) P2O5
(c) H2SO4
(d) SO4-2