12. which of the following best describes the process of hydration? o a. water moving through soil carries away important nutrients, b. water bonds with elements in the minerals that make up a rock, forming new substances, c. water transports weathered sediment from one place and deposits it in another. d. water breaks existing bonds among elements in the minerals that make up a rock.

The answer you are looking for is B

B. Water bonds with elements in the minerals that make up a rock, forming new substances is the correct answer.

Explanation:

Hydration refers to a reaction where a substance is combined with water.

hydration takes place during the weathering process when the mineral structure absorbs water to form a unique or new substances.

hydration causes the rock to rise in a volume that puts tension or stress on the rock and makes it more susceptible to weathering process.

Thus option(B)Water bonds with elements in the minerals that make up a rock, forming new substances is the correct answer.

micro/nanoscale topography surface exhibits many prominent properties and is extensively employed in biomedical device, microfluidic device and energy device fabrication. additionally, the clinical applications of biomaterials can be largely expanded with of nanostructured surfaces.

the relative atomic mass of an element is the mass of one atom of that element, relative to 1/12th of the mass of a  1212c atom. to convert to an absolute mass in kg, it is necessary to multiply by  1.661×10−271.661×10−27.

the relative atomic mass is roughly equal to the number of neutrons, plus the number of protons, in the nucleus of the atom.

for elements with more than one stable isotope (different types of nucleus with different numbers of neutrons but the same number of protons), the quoted mass is usually the average mass, weighted by the relative abundance of the different isotopes.