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Home Q & A Board Science-Related Homework Help Chemistry (Moderator: Laser_3)
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ASKFE ASKFE
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11 years ago
Which functional group tends to form a base in water? Why? and Which usually has a -2 charge when dissolved in water?
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#1
11 years ago
Na forms NaOH K forms KOH also Ca forms CaOH
u want more i can give u more


magnesium Mg and calcium Ca have -2 charge
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#2
11 years ago
An amine functional group will form a base in water:

RNH2 + H2O Rightwards Arrow RNH3(+)  + OH(-)


Your second question has me stumped at the minute though.  It certainly isn't Magnesium or calcium ions though - they have a +2 charge.
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#3
11 years ago
The functional groups which tend to form  basic solution in water include :
 - Hydroxides;
 - Carbonates;
 - Bicarbonates;
- Amines .

These groups show alkaline behaviour due to their very low pKa values and availability of donatable electron pairs.

 Carbonate ions have -2 charge when dissolved in water.
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