Write the chemical formulas of the ionic compounds formedfrom the combinations o

Question

Write the chemical formulas of the ionic compounds formedfrom the combinations of the following pairs of ions.

(a) potassium ions and bromide ions

(b) Barium Ions and iodide ions


(c) Magnesium Ions and hydroxide ions

(d) Aluminium ions and chloride ions

(e) Sodium ions and sulfate ions

(f) Calcium ions and sulfate ions

(g) potassium ions and phosphate ions

(h) Lead (iii) ions and hydroxide ions

(i) Ammonium ions and sulfate ions

(j) Aluminum ions and perchlorate ions

(k) barium ions and phosphate ions

(l) Aluminum ions and carbonate ions

Explanation / Answer

I'm not sure if this is what you are asking for, but here is what Ithink you are asking. The best way to do these is to look at the oxidation states of eachelement or compound and swap them to place them subscripts. Examples: c - Mg2+ and OH1- ,(Magnesium is in group 2, so it's oxidation state is 2+. Hydroxide you can find it in a table to be 1-) so you swap thecharges and apply them to subscripts-->Mg(OH)2. Another example: k - Ba2+ andPO43- =Ba3(PO4)2. If you don't knowthe formulas for phosphate and carbonate etc., just look itup. a)KBr b)BaI2 c)Mg(OH)2d)Al(Cl)3 e)Na2SO4 f)CaSO4g)K3PO4 h)Pb(OH)3 i)(NH4)2SO4 j)Al(ClO4)3 k)Ba3(PO4)2 l)Al2(CO3)3 Hope this helps.

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