2006-07-24 19:11:06 · 7 answers · asked by Anonymous in Environment
calcium, Ca. with different crap attached to it. and different crystal structure.
2006-07-24 19:14:55 · answer #1 · answered by Treezle 3 · 0⤊ 0⤋
The important and common substance in all is calcium carbonate, but except for chalk, others have diferent other substances as well. The formula for calcium carbonate is CaCO3. The number 3 is subscript to O.
2006-07-25 07:05:10 · answer #2 · answered by kal_i_das 2 · 0⤊ 0⤋
they are having same formula i.e. calcium carbonate
CaCO3
2006-07-25 02:15:45 · answer #3 · answered by Anonymous · 0⤊ 0⤋
calcium carbonate
2006-07-25 07:52:59 · answer #4 · answered by k9 1 · 0⤊ 0⤋
calcium carbonate
2006-07-25 02:36:49 · answer #5 · answered by Richard W 2 · 0⤊ 0⤋
calcium?
2006-07-25 04:04:54 · answer #6 · answered by Anonymous · 0⤊ 0⤋
matter
2006-07-25 02:14:09 · answer #7 · answered by Anonymous · 0⤊ 0⤋