You’ve probably heard of the chemical calcium in milk ... common chemicals connected to calcium is called “carbonate”, and together they make calcium carbonate. Calcium carbonate is in eggshells, ...

"This is one of the first demonstrations of microbial dissolution of calcium carbonate at a higher pH," said Karrie Weber, professor of biological sciences and Earth and atmospheric sciences.

A simple demonstration of how a precipitate is evidence of a chemical reaction taking place is performed by mixing solutions of calcium chloride and sodium carbonate to form the precipitate calcium ...