Which of the following is generally defined as a substance composed of molecules in which two or more nonmetallic elements are joined?

A. Binary compound
B. Ionic compound
C. Molecular compound
D. Ternary compound

I think A

Nope. Think on C3H8 or C3H7OH

C. MOLECULAR COMPOUND

Go to the head of the class.

To determine the correct answer, let's break down and understand the terms used in the question:

A. Binary compound: A binary compound is a chemical compound consisting of two elements. For example, sodium chloride (NaCl) is a binary compound composed of sodium (Na) and chlorine (Cl).

B. Ionic compound: An ionic compound is a chemical compound formed by the attraction between positively charged ions (cations) and negatively charged ions (anions). These ions are typically formed from metallic and nonmetallic elements. For example, table salt (NaCl) is an ionic compound composed of the metal sodium (Na) and the nonmetal chlorine (Cl).

C. Molecular compound: A molecular compound is a chemical compound formed when two or more nonmetallic elements combine by sharing electrons. These compounds are usually composed of molecules, where atoms are held together by covalent bonds. For instance, water (H2O) is a molecular compound containing two hydrogen atoms (H) and one oxygen atom (O).

D. Ternary compound: A ternary compound is a chemical compound composed of three different elements. This type of compound does not provide a clear definition for the question.

Now, let's revisit the question: "Which of the following is generally defined as a substance composed of molecules in which two or more nonmetallic elements are joined?"

Based on our understanding of the terms, the correct answer would be C. Molecular compound. Molecular compounds consist of nonmetallic elements forming covalent bonds within the molecule. These compounds are composed of molecules rather than ions, as found in ionic compounds.

So, the correct answer is C. Molecular compound.