It is also known as Chromium Carbonate. In your case, the compound contains chromium, #"Cr"#, as its cation. Since it has a subscript of #color(red)(2)#, it follows that the charge of the anion must be equal to #color(red)(2-)#. How can I name ionic compounds with transition metals? Chromium(III) Carbonate is a chemical compound which can be represented using the chemical symbol Cr 2 (CO 3) 3. Chromium(III) carbonate In order to name an ionic compound, you must identify the cation, which is the positively charged ion, and the anion, which is the negatively charged ion. This is the chemical formula for chromium(III) carbonate: Cr2(CO3), Calculate the mass percent of oxygen in chromium(III) carbonate. In order to name an ionic compound, you must identify the cation, which is the positively charged ion, and the anion, which is the negatively charged ion. Chromium(III) Hydrogen Carbonate Cr(HCO3)3 Molar Mass, Molecular Weight How can I name ionic compounds with three elements? It's important to remember that ionic formulas are written using the crisscross rule, which states that when a cation and an anion form an ionic compound, the charge on the cation becomes the subscript of the anion and the charge of the anion becomes the subscript of the cation in the chemical formula of the compound. Chromium (III) Carbonate Formula. around the world. See all questions in Naming Ionic Compounds. In chemical formula you may use: Any chemical element. "Cr"_ color(red)(2) ("CO"_ 3)_color(blue)(3) It's important to remember that ionic formulas are written using … How do you name ionic compounds with transition metals? This means that the charge on the cation will be equal to #color(blue)(3+)#. It is Solid in state and appears like Light Blue Solid At Room Temperature. Round your answer to the nearest percentage. Cations are always written first in the chemical formula of an ionic compound, followed by the anions. How can I name polyatomic ionic compounds? More information about Chromium(III) carbonate (Cr2(CO3)3). Formula in Hill system is C3Cr2O9: Computing molar mass (molar weight) To calculate molar mass of a chemical compound enter its formula and click 'Compute'. Capitalize the first letter in chemical symbol and use lower case for the remaining letters: Ca, Fe, Mg, Mn, S, O, H, C, N, Na, K, Cl, Al. Cations are always written first in the chemical formula of an ionic compound, followed by the anions. Because chromium is a transition metal, which means that it can have multiple oxidation states, you must use Roman numerals to express its oxidation state in the compound. What rules are used to name ionic compounds? Notice that it's written between parentheses, which tells you that it contains one atom of carbon and three atoms of oxygen, and that it has a subscript of #color(blue)(3)#. Solubility in This means that the ions that make up this compound are, #color(red)(2) xx "Cr"^(color(blue)(3+)" "# and #" " color(blue)(3) xx "CO"_3^(color(red)(2-)#. What are some examples of ionic compounds names? How do you name ionic compounds with roman numerals? Since it carries a #color(blue)(3+)# charge, it follows that you must use the (III) Roman numeral. Now, the anion is actually a polyatomic ion called the carbonate anion. What is the name of the ionic compound Ni3(PO4)2? The cation will thus be chromium(III) and the anion will be the carbonate anion, which means that the compound's name will be, chromium(III) carbonate #-> "Cr"_2("CO"_3)_2#, 6825 views #"Cr"_ color(red)(2) ("CO"_ 3)_color(blue)(3)#.