What is the correct formula for an ionic compound that contains aluminum ions and carbonate ions?
a.Al(CO3)2
b.Al2(CO3)3
c.Al3(CO3)2
d.Al(CO3)3
e.AlCO3
2007-05-30 02:20:56 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
it is Al2(CO3)3
the answer is b
Al is + 3
CO3 is -2
2007-05-30 02:24:15 · answer #1 · answered by Anonymous · 0⤊ 2⤋
Aluminum ions have a +3 charge, and carbonate ions have a -2 charge. The compound has to be neutral, so you have to have the same number of positive and negative charges. If you have 2 Al3+ ions, you have 6 positive charges, so you need 3 carbonate ions to balance the positive charges.
So, the formula will be Al2(CO3)3. B is the correct answer.
2007-05-30 09:28:08 · answer #2 · answered by hcbiochem 7 · 0⤊ 0⤋
Ionic compounds are basically defined as being compounds where two or more ions are held next to each other by electrical attraction. By Jacob
2007-05-31 09:47:51 · answer #3 · answered by Anonymous · 1⤊ 0⤋
Al is + 3
CO3 is -2
so b is the correct answer
Al2(CO3)3
2007-05-30 09:32:04 · answer #4 · answered by Dr Dave P 7 · 0⤊ 0⤋
b.
2007-05-30 09:27:31 · answer #5 · answered by Diamond 2 · 0⤊ 0⤋