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names
calcium carbon and oxygen
There is no compound with the formula CaCO the here is howver CaCO3 which is calcium carbonate. If the question was chemical names of Ca and CO then the answer is calcium and carbon monoxide
similar chemical properties and characteristics
Common name for calcium hydroxide is slaked lime or limewater. The chemical formula is Ca(OH)2 .
These are the artificial radioactive chemical elements.
These two names describe the same chemical compound. "Chloride of lime" was the earlier name, but calcium chloride is now strongly preferred.
It is called a subscript. For example: In the formula for water (H2O), 2 is the subscript indicating that there are 2 hydrogen atoms in the compound .
Water is made up of two atoms of hydrogen to each atom of oxygen.
No, you cannot add prefixes to polyatomic ions. Polyatomic ions are groups of bonded atoms that carry a charge and have specific names that are used in chemical nomenclature. These names do not require prefixes to indicate the number of atoms present.
Prefixes in chemical names indicate the number of atoms of each element present in the molecule before the main part of the name. They provide information about the composition and structure of the compound.
I don't know "Calium",only known to me are"Kalium" which is Latin for the word "Potassium" in English or"Calcium"Spelling is very important, especially for names.