Correct Answer: D) chemical symbols and number of atoms
Explanation
The question is asking about what a molecular formula shows in a molecule. A molecular formula is a representation of the types and number of atoms present in a molecule. It shows the chemical symbols and the number of atoms of each element in a molecule. For example, the molecular formula of water is H2O, which means it contains two hydrogen atoms and one oxygen atom. The correct option for this question is Option D, which states that the molecular formula shows the chemical symbols and number of atoms.
It is important to note that a molecular formula is different from an empirical formula, which shows the simplest whole number ratio of the atoms in a compound. For example, the empirical formula of glucose is CH2O, which represents the ratio of one carbon atom, two hydrogen atoms, and one oxygen atom in the compound.
Understanding molecular formulas is crucial in Chemistry as it helps in identifying and naming compounds, determining their properties, and predicting their behavior in different chemical reactions. To learn more about molecular formulas and their applications, please read the relevant sections of the recommended textbooks.
