The scientific term that describes a solution with a low concentration of hydrogen ions is "alkaline" or "basic." In the pH scale, a solution with a pH greater than 7 is considered alkaline, indicating that there are fewer hydrogen ions (H+) compared to hydroxide ions (OH−). Alkalinity is important in various chemical and biological processes, influencing reactions, solubility, and environmental factors. Common examples of alkaline substances include baking soda and soap. Understanding acidity and alkalinity is essential in fields ranging from chemistry to biology, as they affect everything from soil health to human physiology.