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Calcium Carbonate (CaCO₃)

In this case of crystalline speleothem, we see the end result of a chemical reaction between ancient fishbones and water interacting with carbon dioxide.


Let us break some bread

As I walked through the bread aisle in my neighborhood supermarket, I was surprised to see the long ingredient lists on different brands of bread. It is kind of curious because conventionally bread is prepared using all or some of the following ingredients only: Wheat flour, Milk, Oil or fat, Yeast, Salt and Sugar.  1,515 more words

Balanced Diet