Question

given a formula, you have learned to write the name. given a name, you have learned to write the formula. in which situations is it necessary to use charges to determine the correct answer? (choose the best answer.) 1) writing formulas for binary ionic compounds 2) writing formulas for binary ionic compounds with transition metals 3) writing names for binary ionic compounds with transition metals 4) writing formulas for binary ionic compounds with polyatomics 5) never for covalent compounds 1) writing formulas for all types of ionic compounds 2) writing formulas for covalent compounds 1) writing formulas and names for all covalent compounds 2) writing names for ionic compounds with transition metals. 1) writing names for binary ionic compounds 2) writing names for ionic compounds with transition metals 3) writing formulas for ionic compounds with polyatomic ions 4) never for covalent compounds

Explanation:

Ionic compounds are composed of ions held together by electrostatic forces. The charges of the ions are crucial in determining the formula of ionic compounds. Covalent compounds are formed by sharing electrons and do not involve ion - charges in the same way. When writing formulas for ionic compounds (including those with transition metals and polyatomic ions), we use the charges of the constituent ions to balance the overall charge of the compound. When writing names for ionic compounds with transition metals, we also need to indicate the charge of the transition metal in Roman numerals in the name.

Answer:

1. Writing FORMULAS for all types of ionic compounds
2. Writing FORMULAS for binary ionic compounds with transition metals
3. Writing FORMULAS for binary ionic compounds with polyatomics
4. Writing NAMES for ionic compounds with transition metals
5. Writing FORMULAS for ionic compounds with polyatomic ions
6. NEVER for covalent compounds