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Which of the following best describes an alkali?
A. Any substance with a pH above 7.
B. A soluble solid that forms H+ ions in a solution.
C. A soluble solid that has a pH above 7.
D. An insoluble solid that forms OH-ions in a solution.

Respuesta :

quasarJose

Answer:

A. Any substance with a pH above 7.

Explanation:

On the pH scale substances whose value is greater than 7 and less than 14 are termed alkali.

Acids have  a pH of less than 7 whereas neutral compounds such as water has pH of 7.

  • An alkali is any substance that produces excess hydroxyl ion in solutions.
  • Water soluble bases are known as alkali.
  • They are usually certain metallic oxides, metallic hydroxides and aqueous ammonia.

Answer:

C   A soluble solid that forms H+ ions in a solution

Explanation:

founders ed

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