QuestionJuly 22, 2025

Identify the ion ratios needed to form neutral compounds from the ions below. The metal listed first, and the nonmetal ion (anion) is listed second. Make sure to give each ratio in simplified form. Na^+:Br^-=1:square Al^3+:Cl^-=1:square Mg^2+:O^2-=1:square Al^3+:O^2-=2:square

Identify the ion ratios needed to form neutral compounds from the ions below. The metal listed first, and the nonmetal ion (anion) is listed second. Make sure to give each ratio in simplified form. Na^+:Br^-=1:square Al^3+:Cl^-=1:square Mg^2+:O^2-=1:square Al^3+:O^2-=2:square
Identify the ion ratios needed to form neutral compounds from the ions below. The metal listed first, and the nonmetal ion (anion) is listed second. Make sure to give each ratio in simplified form. Na^+:Br^-=1:square Al^3+:Cl^-=1:square Mg^2+:O^2-=1:square Al^3+:O^2-=2:square

Solution
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Answer

Na^{+}:Br^{-}=1:1 ### Al^{3+}:Cl^{-}=1:3 ### Mg^{2+}:O^{2-}=1:1 ### Al^{3+}:O^{2-}=2:3 Explanation 1. Determine the ratio for Na^{+}:Br^{-} Sodium ion (Na^+) and bromide ion (Br^-) both have charges of \pm 1. Therefore, they combine in a 1:1 ratio to form a neutral compound. 2. Determine the ratio for Al^{3+}:Cl^{-} Aluminum ion (Al^{3+}) has a charge of +3, while chloride ion (Cl^-) has a charge of -1. To balance the charges, three chloride ions are needed for each aluminum ion, resulting in a 1:3 ratio. 3. Determine the ratio for Mg^{2+}:O^{2-} Magnesium ion (Mg^{2+}) and oxide ion (O^{2-}) both have charges of \pm 2. They combine in a 1:1 ratio to form a neutral compound. 4. Determine the ratio for Al^{3+}:O^{2-} Aluminum ion (Al^{3+}) has a charge of +3, and oxide ion (O^{2-}) has a charge of -2. To balance the charges, two aluminum ions and three oxide ions are needed, resulting in a 2:3 ratio.

Explanation

1. Determine the ratio for $Na^{+}:Br^{-}$<br /> Sodium ion ($Na^+$) and bromide ion ($Br^-$) both have charges of $\pm 1$. Therefore, they combine in a 1:1 ratio to form a neutral compound.<br /><br />2. Determine the ratio for $Al^{3+}:Cl^{-}$<br /> Aluminum ion ($Al^{3+}$) has a charge of +3, while chloride ion ($Cl^-$) has a charge of -1. To balance the charges, three chloride ions are needed for each aluminum ion, resulting in a 1:3 ratio.<br /><br />3. Determine the ratio for $Mg^{2+}:O^{2-}$<br /> Magnesium ion ($Mg^{2+}$) and oxide ion ($O^{2-}$) both have charges of $\pm 2$. They combine in a 1:1 ratio to form a neutral compound.<br /><br />4. Determine the ratio for $Al^{3+}:O^{2-}$<br /> Aluminum ion ($Al^{3+}$) has a charge of +3, and oxide ion ($O^{2-}$) has a charge of -2. To balance the charges, two aluminum ions and three oxide ions are needed, resulting in a 2:3 ratio.
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