Respuesta :
Answer:
c.Baking Soda (sodium bicarbonate)
Explanation:
The Arrhenius theory was introduced introduced by Swedish scientist named Svante Arrhenius in 1887.
According to the theory, acids are the substances which dissociate in the aqueous medium to produce electrically charged atoms ( may be molecule). Out of these species furnished, one must be a proton or the hydrogen ion, [tex]H^+[/tex].
Base are the substances which dissociate in the aqueous medium to produce electrically charged atoms ( may be molecule). Out of these species furnished, one must be a hydroxide ion, [tex]OH^-[/tex].
a. Lemon juice contains citric acid which is an acid.
b. Vinegar contains acetic acid which is an acid.
c. Baking Soda contains sodium bicarbonate and is a base.
Thus, c is the answer.
pH is defined as the negative logarithm of the concentration of hydrogen ions.
Thus,
pH = - log [H⁺]
pH scale generally runs from 1 to 14 where pH = 7 represents neutral medium, pH < 7 represents acidic medium and pH > 7 represents basic medium.
d. Substance with pH 7 represents neutral solution.
