Timeline for How to obtain calcium carbonate?
Current License: CC BY-SA 4.0
5 events
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| Jul 2, 2019 at 11:50 | history | edited | Veritas | CC BY-SA 4.0 |
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| Jul 1, 2019 at 16:03 | comment | added | andselisk♦ | 4. For some reason the first equation doesn't include states of aggregation (as the second one does), also the listed precautions are relevant for a highly concentrated HCl solution or HCl gas; 5. "Na2CO3(s) + CaCl2(s) + H2O(l) ⤑ CaCO3(s) + 2 NaCl(aq)": what water on the left is reacting with? 6. ">98% purity": any reference to the published procedure to back this number up? | |
| Jul 1, 2019 at 16:03 | comment | added | andselisk♦ | 1. "Bones are mainly made up of Collagen and Calcium": this is a rough approximation, also in this context calcium appears as metal (you probably mean calcium(II) salts), plus Mg, Bo, Si, Al are not minerals, those are elements; 2. Unless the first word of the sentence, chemical names are not capitalized; 3. "Ca + 2HCl → CaCl2 + H2": again, there is no calcium metal in bone tissue, and it's not clear what this reaction is supposed to demonstrate; | |
| Jul 1, 2019 at 15:45 | history | edited | Veritas | CC BY-SA 4.0 |
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| Jul 1, 2019 at 14:58 | history | answered | Veritas | CC BY-SA 4.0 |