Q
QuestionChemistry

Write the empirical formula of at least four binary ionic compounds that could be formed from the following ions: Ca^2 + ,Al^3 + ,I − ,O^2−
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Answer

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Step 1:
I'll solve this problem step by step, following the specified formatting guidelines:

Step 2:
: Understand the Ionic Charges

O^{2-}$$ (Oxide ion with -2 charge)
- Cations (positively charged ions): - Anions (negatively charged ions):

Step 3:
: Determine Possible Combinations

- Empirical formula: $$Al_{2}O_{3}
To form a neutral compound, the total positive and negative charges must balance. Compound 1: Calcium Iodide Compound 2: Calcium Oxide Compound 3: Aluminum Iodide Compound 4: Aluminum Oxide

Final Answer

1. CaI_{2} 2. CaO 3. AlI_{3} 4. Al_{2}O_{3}