Question

value: 4 which of the following part of the chemical formula represents the initial letter, denoting the type of element? a. coefficient b. subscript c. symbol d. product

Explanation:

• Option a: A coefficient in a chemical formula is a number that indicates the number of molecules or formula units, not the element's type. For example, in \(2H_2O\), the "2" is a coefficient.
• Option b: A subscript in a chemical formula indicates the number of atoms of an element in a molecule or formula unit. For example, in \(H_2O\), the "2" (subscript of H) shows there are 2 hydrogen atoms.
• Option c: The symbol (chemical symbol) of an element is represented by one or two letters (the initial letter or initial letters) that denote the type of element. For example, "H" for hydrogen, "O" for oxygen.
• Option d: A product is a substance formed as a result of a chemical reaction, not a part of the chemical formula denoting the element's type.

Answer:

c. Symbol