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Limestone is a widely and diversely used material.
calcium carbonate, limestone, marble, calcite, limescale, ionic compound, ionic crystal lattice, cation, anion, formula, rock, sedimentary rock, karst area, dripstone, dolostone, compound, inorganic chemistry, chemistry
A compound ion produced from carbonic acid by releasing protons.
Certain mollusks produce pearls in order to protect themselves from parasites or debris. Pearls are used for making jewelry.
The simplest of the aromatic carboxylic acids.
Colorless, odorless, heavier-than-air gas. Necessary for the photosynthesis of plants.
Colorless, odorless gas, highly toxic to humans and animals in high concentration.
Colorless, odorless liquid produced by dissolving carbon dioxide in water.
In benzene there are sigma bonds and delocalized pi bonds between carbon atoms.
This animation shows the electron configuration of the calcium atom.
An exercise about compound ions.