How to calculate the formula of aluminium hydroxide by valences?
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hey ..
here's ur answer ....
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Criss-cross" the charges of each atom because it is an ionic compound. This will get you #Al(OH)_"3"#.
Explanation:
Aluminum has a chemical symbol of #Al#, with a charge of 3+.
Hydroxide is a molecule consisting of two elements - hydrogen and oxygen. The chemical formula for hydroxide is #OH^(1-)#.
Aluminum is the cation, while hydroxide is the anion, thus we get #Al(OH)_"3"#. This is because we still "criss-cross" the charges as it is an ionic compound - electrons are transferred - so aluminum's charge of 3+ goes to hydroxide while its charge of 1- goes to aluminum.
The 1 is redundant so we don't write it in.
Hope this helps :)
.......__£___£___£___€
here's ur answer ....
____¥____¥____¥____¥
Criss-cross" the charges of each atom because it is an ionic compound. This will get you #Al(OH)_"3"#.
Explanation:
Aluminum has a chemical symbol of #Al#, with a charge of 3+.
Hydroxide is a molecule consisting of two elements - hydrogen and oxygen. The chemical formula for hydroxide is #OH^(1-)#.
Aluminum is the cation, while hydroxide is the anion, thus we get #Al(OH)_"3"#. This is because we still "criss-cross" the charges as it is an ionic compound - electrons are transferred - so aluminum's charge of 3+ goes to hydroxide while its charge of 1- goes to aluminum.
The 1 is redundant so we don't write it in.
Hope this helps :)
.......__£___£___£___€
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