a sour tasting substance that turns blue litmus paper red and has a pH less than 7
acid
The sour-tasting substance that turns blue litmus paper red and has a pH less than 7 is an acid. Acids are chemical compounds that release hydrogen ions (H+) when dissolved in water. These H+ ions react with water molecules to form hydronium ions (H3O+), which are responsible for the acidic properties of the substance.
The pH scale measures the concentration of H+ ions in a solution, with pH 7 being the neutral point where the concentration of H+ ions is equal to the concentration of hydroxide ions (OH-) in the solution. Acids have a pH value less than 7, while bases have a pH value greater than 7.
Some examples of common acids include hydrochloric acid (HCl), sulfuric acid (H2SO4), acetic acid (CH3COOH), and citric acid (C6H8O7). Acids are used in many industries, including cleaning, food and beverage production, and pharmaceuticals. However, they can be corrosive and harmful if not handled properly, and can cause burns and other injuries if they come into contact with skin or eyes.
More Answers:
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