Alkaline compounds are substances that have a pH greater than 7, indicating they are basic rather than acidic. These compounds often contain metal ions, such as sodium or potassium, and can neutralize acids. Common examples include sodium hydroxide and potassium carbonate, which are used in various industrial and household applications. In nature, alkaline compounds can be found in soil and water, affecting the environment's chemistry. They play a crucial role in processes like plant growth and water treatment. Understanding alkaline compounds is essential for fields such as agriculture, environmental science, and chemistry.