To determine if a cation would produce a neutral or acidic solution in water, we will follow this set of rules.
• transition metal
▪ charge of +2 or higher → acidic
▪ less than +2 → neutral solution
• main group metal
▪ charge of +3 or higher → acidic
▪ less than +3 → neutral solution
• amines - compounds with only nitrogen or hydrogen (i,e. NH3) or with carbon, nitrogen and hydrogen
▪ positive amines → acidic
1. For Mn3+, write an equation that shows how the cation acts as an acid.
2. For C5H5NH+, write an equation that shows how the cation acts as an acid.
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