Q:

What are some of the properties of acids?

A:

Quick Answer

Some of the properties of acids are that they conduct electricity when they are dissolved in water, liberate hydrogen when they react with active metals and, when combined with a base, will produce a salt and a neutralized base. Acids also have a pH which is less than 7 in an aqueous solution, and will change the color of blue litmus paper to red. In an operational sense, acids increase the concentration of H+ ions when they are dissolved in water.

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Full Answer

A lower pH of an acid in an aqueous solution indicates a greater degree of acidity, and results in a higher concentration of positive ions within the solution. Acids found in everyday life are usually found in solution. The stronger acids, such as hydrochloric acid (HCl), and some higher concentrations of weak acids tend to be corrosive.

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  • Q:

    How are acids and bases harmful?

    A:

    According to the Lawrence Berkeley National Laboratory, acids and bases are corrosive and capable of destroying body tissue. When they come into contact with tissues, concentrated forms of acids cause immediate pain. High concentrations of hydrofluoric acid also result in immediate pain and tissue destruction.

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  • Q:

    What are neutral substances?

    A:

    Neutral substances are chemicals that have no properties of either acids or bases, have equal parts hydrogen and hydronium ions and don't change the color of litmus paper or other acid-base indicators. Neutral substances include water, glucose solutions and salt solutions. These chemicals have a pH of 7.0 on a scale of 14. In terms of toxicity, neutral substances are generally harmless to the touch.

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  • Q:

    What do all acids have in common?

    A:

    All acids release positively charged hydrogen atoms in water. This distinguishes them from bases, which release negatively charged hydroxide ions in water. Most, but not all, acids have a number of similar properties, including taking the form of a fluid, having a sour taste and feeling sticky to the touch. Additionally, most acids produce hydrogen gas when they react with a metal.

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  • Q:

    Which two functional groups are always found in amino acids?

    A:

    The two functional groups always found in amino acids are carboxyl and amino groups. Both groups are acidic. A peptide bond occurs when the carboxyl group of one amino acid joins the amino end of another.

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