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O ATOMS, ONS AND MOLECULES Predicting the formula of ionic compounds with common te the empirical formula for at least four ionic compounds that could be formed from the following ions: соз. Fe. CrO,-, Fe2+
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Ans → imula f an ioni Cam bound uve have to lookonlowing thaings : tuings Finst, se have to dletesnune the chesye on each ion Then Combine the ions in uch a netotht gives electou meutmal comboun d NTE→ Tf the change on the ions ane egual in magnitude obpesite in An) en et be Combined inI 2. 2 t 4- Having positive chasge Anons co,2-, (r04. _ { Haviny Negative charge} Fo e3 and 0Ton has +3 chage and Carbon ake he nanus 2chosge So, to make a neutnal compound tes thnee Having Neqatve charse Co3 ons to o with wo Fe3 ions So Embixicq for, mula becomes IFea (co3 )3 Ary ana e while carbon ate Sinni layng hn fe2t and (Og, 그mon has +2 ch has -2 chasge. Thei cange ane equal in maghituole (ophosile in hign) So they wit foam compound (neutnal) in l: So Empisuital fmmla becomes g Aus Fon Fe3 and (,Tan has +3 change wtile (ktomale heu 910n 2 change So, to make a neutra compound t

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