In a classic demonstration, pepper floating on water runs away from a soapy finger. What has happened? A. Pepper is repelled by soap due to dipole forces between the molecules.
B. Soap on the finger breaks up the surface tension of the water.
C. Cohesive forces cause the water to stick to the pepper.
D. Adhesive forces cause the water at the surface to move away from the finger.

answer: e.   sour taste

explanation: acids are those substances which dissociates in water to give ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. acids are sour in taste. example: hcl

bases are those substances which dissociates in water to give ions or accepts ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. bases are bitter in taste. bases are slippery in nature.

answer; the numbers of valence electrons in the acetic acid molecule (ch3co2h) is 24;