Classify the compound Co(NO3)2 as ionic or covalent. What is the name of this compound? 2. Classify the compound CF4 as lonic or covalent? What is the name of this compound? 3. Classify the compound nitrogen monoxide as ionic or covalent. What is the What is the formula for this compound? 4. Classify the compound copper(I) cyanide as ionic or covalent. What is the formula for this compound?
The Correct Answer and Explanation is :
- Co(NO3)2 – Ionic Compound
Name: Cobalt(II) nitrate
Cobalt(II) nitrate is an ionic compound. It is formed by the interaction of cobalt ions (Co²⁺) and nitrate ions (NO₃⁻). The cobalt ion carries a +2 charge, while each nitrate ion carries a -1 charge. The compound is held together by the electrostatic attraction between the oppositely charged ions. The formula Co(NO3)2 represents one cobalt ion combined with two nitrate ions to balance the charges. Ionic compounds tend to form between metals and nonmetals, and cobalt (a metal) combines with the nonmetal nitrate. - CF4 – Covalent Compound
Name: Carbon tetrafluoride
Carbon tetrafluoride is a covalent compound. It consists of carbon (C) and fluorine (F), both of which are nonmetals. In CF₄, each fluorine atom shares one electron with the carbon atom, and the carbon shares one of its electrons with each fluorine atom. The compound is held together by covalent bonds, where electrons are shared between atoms. Since both carbon and fluorine are nonmetals, CF₄ is covalent. - Nitrogen monoxide (NO) – Covalent Compound
Formula: NO
Nitrogen monoxide is a covalent compound because it involves the sharing of electrons between nitrogen (N) and oxygen (O). The bond in NO is a covalent bond, where nitrogen shares an electron with oxygen to form a molecule. Both nitrogen and oxygen are nonmetals, which is characteristic of covalent bonding. The molecule is simple, consisting of one nitrogen atom and one oxygen atom, and its formula is NO. - Copper(I) cyanide (CuCN) – Ionic Compound
Formula: CuCN
Copper(I) cyanide is an ionic compound. It is formed by copper(I) ions (Cu⁺) and cyanide ions (CN⁻). The copper(I) ion has a +1 charge, while the cyanide ion carries a -1 charge. These ions are held together by strong electrostatic attraction in an ionic bond. Copper is a metal, and cyanide is a polyatomic nonmetal ion, making the compound ionic in nature. The formula is CuCN, with one copper ion combining with one cyanide ion to form a neutral compound.
Explanation:
Ionic compounds form when atoms transfer electrons, creating positively and negatively charged ions that are attracted to each other. Typically, this occurs between metals and nonmetals. In contrast, covalent compounds form when atoms share electrons, usually between nonmetals. In all four compounds, the type of bonding (ionic or covalent) can be predicted based on the elements involved. Ionic compounds have distinct properties such as high melting points and electrical conductivity when dissolved in water, while covalent compounds typically have lower melting points and do not conduct electricity.