Answer:
A chemical formula is a symbolic representation of a compound that provides information about the elements present in the compound and their relative proportions. It consists of element symbols and subscript numbers that indicate the number of atoms of each element in the compound.
In a chemical formula, the blank represents the symbol of an element. The symbol is usually derived from the name of the element, often using the first one or two letters. For example, "C" represents carbon, "O" represents oxygen, and "H" represents hydrogen.
Following the element symbol, there is a blank number that stands for the number of atoms of that element in the compound. This number is represented as a subscript, written slightly below and to the right of the element symbol. For example, in the chemical formula for water (H2O), the subscript 2 indicates that there are two hydrogen atoms present.
Step-by-step explanation: