A rock's composition is not changed by mechanical weathering. Only the size of the fragments decreases. ... Mechanical weathering breaks rocks down into smaller fragments, and increases the surface area of the over all material. By increasing the surface area, chemical processes may act more easily upon the rock surface.
<h2><u>Answer:</u></h2>
The solar system is divided into Terrestrial and Jovian planets. They have a difference in their position and composition.
The main difference is between them is of their surfaces. The terrestrial planets have solid surfaces while Jovian planets have gaseous surfaces.
Jovian planets are less denser than Terrestrial planets because they have more ratio of hydrogen gas in them.
Answer:
IM NOT SURE!!! but this could be true
Explanation:
Given:
Diprotic weak acid H2A:
Ka1 = 3.2 x 10^-6
Ka2 = 6.1 x 10^-9.
Concentration = 0.0650 m
Balanced chemical equation:
H2A ===> 2H+ + A2-
0.0650 0 0
-x 2x x
------------------------------
0.065 - x 2x x
ka1 = 3.2 x 10^-6 = [2x]^2 * [x] / (0.065 - x)
solve for x and determine the concentration at equilibrium.
Answer: When silver is exposed to sulfur-containing gases in the air, it discolours and then darkens as it reacts with the gas to form a surface layer of tarnish. This process is called tarnishing.
Hope this helped :)
