Answer:
c. acids.
Explanation:
Acids are substances that have more positive hydrogen ions (H) or protons (cations or anions) than hydroxyl ions (OH) in an aqueous solution; For this reason, they are known as “proton donors”.
In addition, acids react with bases, forming salts and water in a reaction called a "neutralization reaction".
In addition to the prevalence of hydrogen ions in their composition, acidic substances are colorless, have a strong suffocating odor, sour, acidic or bitter taste, pH below 7. low boiling point, conduct electricity in aqueous medium. and react with metals such as iron, magnesium and zinc.
