A Carbonate is the Anion 'CO3^2-'
The elemental atoms are
1 x C = 1 Carbon
3 x O = 3 x Oxygen.
The anion does not exist on its own , but has a corresponding metal cation to balance the '2-' charge. e.g.
Sodium carbonate (Na2CO3)
Calcium Carbonate (CaCO3)
Iron(III) Carbonate ( Fe2(CO3)3)
There are plenty more, but notice they are have a 'CO3' moiety.
Carbonates are ionic compounds that are formed with a cation (a positive ion) which is typically a metallic element with the polyatomic (many atom) ion carbonate (CO3). Therefore, carbonates always have 1 carbon atom and three oxygen atoms in addition to what ever atoms are in the cation to which it is bonded. An example would be Calcium carbonate (Ca(CO3)2) or sodium carbonate (NaCO3)
calcium carbonates in rocks and shells, and also just plain old carbonates
Carbonates don't contain silicon.
The acid that makes carbonates is carbonic acid.
As carbonates are mildly basic, anything acid will react with them (releasing carbon dioxide gas).
Water (H2O) contains hydrogen and oxygen. There for its element sign id H2O. H2Os combination of atoms is 2 hydrogen atoms and one oxygen atom.
yes
No. Silicates do however.
carbonates
yes
Crystal faces accumulate atoms
It is a compound. Only atoms have atomic number. Elements have their own atomic number.
calcium carbonates in rocks and shells, and also just plain old carbonates
Organic molecules have carbon atoms that are covalently bonded to other carbon atoms, as opposed to oxygen-containing carbonates (which are generally inorganic).
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Hard water contains carbonates and bicarbonates of calcium and Magnesium.
Construction materials, silica sand, carbonates, and coal
The most common of these bases are hydroxides, carbonates, or bicarbonates.