Formula to Name CO(NO2)3 Fe(CIO3)3_ ??? Sr(HCO3)2 Cl20 Cu(OH)2 CCH CO AIN Ag2SO4 V(CO3)2 Ba(NO2)2 Na S04_ NHACI Cs2HPO4 N305 SO3 SeFe_ Instructions Circle the IONIC compounds in one color Circle the COVALENT compounds in another color. Write the NAME ar FORMULA in PENCIL Part Formula to Name CONO Fe(CIO) ??? SrHCO CION Cu(OH) COM ?? AIN Ag,SO VICO Ba(NO) Nais NHCI CAMPO NO SO SeF
The Correct Answer and Explanation is :
Let’s break down the list of compounds, categorize them into ionic and covalent compounds, and then name them according to their chemical formulas.
Ionic Compounds:
- Fe(CIO₃)₃ – Iron(III) chlorate
- Sr(HCO₃)₂ – Strontium bicarbonate
- Ag₂SO₄ – Silver sulfate
- Ba(NO₂)₂ – Barium nitrite
- Na₂SO₄ – Sodium sulfate
- Cs₂HPO₄ – Cesium hydrogen phosphate
- NH₄Cl – Ammonium chloride
- Na₂S – Sodium sulfide
Covalent Compounds:
- CO(NO₂)₃ – Carbon trinitrate
- Cu(OH)₂ – Copper(II) hydroxide (can be ionic depending on context but is often considered a base in covalent naming)
- C₆H₆ – Benzene (Covalent organic compound, hydrocarbon)
- N₃O₅ – Dinitrogen pentoxide (covalent molecular compound)
- SO₃ – Sulfur trioxide
- SeFe – Selenium iron compound (likely a molecular form of SeFe, but this compound is rare and may be treated as an alloy or molecule)
Explanation:
- Ionic Compounds: Ionic compounds consist of metal and non-metal ions. In this list, ionic compounds are those where a metal (e.g., Fe, Sr, Ag, Na, Cs) combines with a non-metal (e.g., chloride, sulfate, bicarbonate). These compounds dissociate into ions when dissolved in water.
- Covalent Compounds: Covalent compounds involve the sharing of electrons between non-metals (e.g., carbon, nitrogen, oxygen, sulfur, selenium). They form molecules that do not dissociate into ions in water, except for compounds like Cu(OH)₂, which can also form ions but is often treated as a covalent compound due to its hydroxide bond.
Steps for Naming Ionic Compounds:
- Name the metal (cation) first, followed by the non-metal (anion).
- If the metal has more than one possible charge (e.g., Fe³⁺ in Fe(CIO₃)₃), specify the charge using Roman numerals in parentheses.
- The non-metal is named with its ending changed to “-ate” or “-ite” if it’s a polyatomic ion (e.g., chlorate in Fe(CIO₃)₃).
Steps for Naming Covalent Compounds:
- The more electropositive element is named first, followed by the more electronegative element.
- Use prefixes (mono-, di-, tri-, etc.) to indicate the number of atoms of each element, except for “mono-” on the first element.
By categorizing and naming the compounds correctly, we can better understand their structure and behavior in different chemical contexts.