Question

Magnesium forms the compounds Mg(NO3)2, MgCl2, MgSO4, and Mg3(PO4)2. What are the formulas for calcium nitrate, calcium chloride, calcium sulfate, and calcium phosphate? Knowing that gallium forms a 3+ charge, what would you predict are the formulas for gallium nitrate, gallium chloride, gallium sulfate, and gallium phosphate?

Answer 1

• Gallium nitrate is an inorganic nitrate salt of gallium with the formula Ga(NO₃)₃

,

• Gallium chloride has the formula of GaCl₃

,

• Gallium sulfate has the formula Ga₂(SO4)₃

,

• Gallium phosphate has the formula GaPO₄

,

•

Procedure

To solve this question, we need to consider that calcium has a valence of 3, meaning it will need to combine with other elements to complete its octet.

• Gallium nitrate is an inorganic nitrate salt of gallium with the formula Ga(NO₃)₃

,

• Gallium chloride has the formula of GaCl₃

,

• Gallium sulfate has the formula Ga₂(SO4)₃

,

• Gallium phosphate has the formula GaPO₄