How necessary is soap for removing salt from your hands?
A) Soap is necessary because it has both a polar and nonpolar end to interact with the positive and negative ions in the salt.
B) Soap is necessary because it creates a film on the surface of your skin, shielding it from interacting with the ionic charges of the salt.
C) Soap is not at all necessary for removing salt from your hands. The strong ion-dipole interactions between fresh water and the salt are most sufficient to lift the salt away from your hands.
D) Soap is not necessary because there are no electrical charges on the skin of your hands for the salt to interact with.
Answer: C
You might also like to view...
Which should have the higher thermal conductivity, a single-crystal gas-turbine blade or a polycrystal turbine blade? _____________
Fill in the blank(s) with the appropriate word(s).
In the diagram below, draw the transition that would emit a photon with the smallest wavelength
If you add 700 kJ of heat to 700 g of water at 70.0°C, how much water is left in the container? The latent heat of vaporization of water is 2.26 × J/kg and its specific heat is 4190 J/(kg ? K)
A) 429 g B) 258 g C) 340 g D) 600 g E) none
You see colors in a rainbow because of
a. interference. b. diffraction. c. specular reflection. d. dispersion. e. polarization.