Here are the essential concepts you must grasp in order to answer the question correctly.
Acids
Acids are substances that can donate protons (H+) in a chemical reaction. They typically have a sour taste, which is a common characteristic of many acidic substances, such as citric acid found in lemons. Acids can also turn blue litmus paper red and react with bases to form salts and water.
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Bases
Bases are substances that can accept protons or donate hydroxide ions (OH-) in a chemical reaction. They often have a bitter taste and a slippery feel. Bases can turn red litmus paper blue and react with acids to neutralize them, forming salts and water.
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pH Scale
The pH scale is a measure of the acidity or basicity of a solution, ranging from 0 to 14. A pH less than 7 indicates an acidic solution, while a pH greater than 7 indicates a basic solution. The pH scale helps in understanding the strength of acids and bases, with strong acids having lower pH values and strong bases having higher pH values.
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