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(a) (i) FA 5, FA 6 and FA 7 are aqueous solutions each containing one anion and one cation. Carry out the experiments described below and record your observations for each solution in the table. FA 5 FA 6 FA 7 To a 1 cm depth in a test-tube, add a 1 cm depth of aqueous sodium carbonate. To a 1 cm depth in a test-tube, add a 1 cm depth of aqueous
Naming ionic compounds is simple: combine the name of the cation and the name of the anion, in both cases omitting the word ion. Do not use numerical prefixes if there is more than one ion necessary to balance the charges. NaCl is sodium chloride, a combination of the name of the cation (sodium) and the anion (chloride). MgO is magnesium oxide.
The formula unit or empirical formula represents the minimum proportion between cations and anions in the crystal lattice. In sodium chloride, there is one Na + cation per each Cl-, so the formula unit for sodium chloride is is NaCl. In calcium chloride, there are two Cl-anions per Ca 2 + cation, so the empirical formula for calcium chloride is ...
Jul 29, 2022 · For example, when each sodium atom in a sample of sodium metal (group 1) gives up one electron to form a sodium cation, Na +, and each chlorine atom in a sample of chlorine gas (group 17) accepts one electron to form a chloride anion, Cl −, the resulting compound, NaCl, is composed of sodium ions and chloride ions in the ratio of one Na + ion ...
Mar 11, 2022 · The formula of an ionic compound represents the lowest whole number ratio of cations to anions, it is as simple as that. Most cations have charges of [+1] through [+6] while most ions have charges of [-1] through [-3]. Trick: Set # of Anions = Charge of Cation and. set # of Cations = Charge of Anion.
Feb 10, 2024 · The formula of Chromium III Sulfate is Cr 2 (SO 4) 3. It is an ionic compound where Chromium (Cr) is the metal with Cr+3 cation and sulfate is the SO4-2 anion. Chromium III has a valence of 3 and Sulfate has a valence of 2, we will need 2 chromium and 3 sulfate ions to balance 6 valence ties. So, the Charge carried by the chromium cation Cr +3 ...
For example, in the reaction of Na (sodium) and Cl (chlorine), each Cl atom takes one electron from a Na atom. Therefore each Na becomes a Na + cation and each Cl atom becomes a Cl-anion. Due to their opposite charges, they attract each other to form an ionic lattice. The formula (ratio of positive to negative ions) in the lattice is \(\ce{NaCl}\).
