Question

Что показывает химическая формула? Приведите примеры.

Answer 1

What does a chemical formula show?

A chemical formula is a representation of a chemical substance using symbols for the elements present in the substance. It shows the types and numbers of atoms that make up a molecule or compound. Chemical formulas provide important information about the composition and structure of a substance.

Examples of chemical formulas:

1. Water: The chemical formula for water is H2O. It indicates that a water molecule consists of two hydrogen atoms (H) bonded to one oxygen atom (O).

2. Carbon dioxide: The chemical formula for carbon dioxide is CO2. It shows that a carbon dioxide molecule consists of one carbon atom (C) bonded to two oxygen atoms (O).

3. Sodium chloride: The chemical formula for sodium chloride (common table salt) is NaCl. It represents that a sodium chloride molecule consists of one sodium atom (Na) bonded to one chlorine atom (Cl).

4. Glucose: The chemical formula for glucose, a simple sugar, is C6H12O6. It indicates that a glucose molecule consists of six carbon atoms (C), twelve hydrogen atoms (H), and six oxygen atoms (O).

These examples demonstrate how chemical formulas provide a concise and standardized way to represent the composition of different substances.