Answer:
Chemical weathering.
Explanation:
Chemical weathering has more to do with weathering things with acid, water, and air. Mechanical weathering happens without water most of the time. Yes they both have water weathering but Chemical weathering has a higher rate of impact.
Table slat has a low melting pointy while mercury has a high one
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Answer:
![-r_{O_2}=1\times{10}^{-5}\frac{M}{s}](https://tex.z-dn.net/?f=-r_%7BO_2%7D%3D1%5Ctimes%7B10%7D%5E%7B-5%7D%5Cfrac%7BM%7D%7Bs%7D)
Explanation:
The decomposition of
follows the equation
By definition, the rate of a chemical reaction can be expressed by
![-r_{NO_2}=\frac{d\left[NO_2\right]}{dt}=\frac{0.010-0.008\ M}{100\ s}=2\times{10}^{-5}\frac{M}{s}](https://tex.z-dn.net/?f=-r_%7BNO_2%7D%3D%5Cfrac%7Bd%5Cleft%5BNO_2%5Cright%5D%7D%7Bdt%7D%3D%5Cfrac%7B0.010-0.008%5C%20M%7D%7B100%5C%20s%7D%3D2%5Ctimes%7B10%7D%5E%7B-5%7D%5Cfrac%7BM%7D%7Bs%7D)
The rate of appearance of
is related to the rate of disappearance of
by the stoichiometry. This means that, for each mole of
that appears 2 moles of
are consumed. So
![-r_{O_2}=-r_{NO_2}\times\frac{1\ mole\ \ O_2}{2\ mole\ \ {\rm NO}_2}=1\times{10}^{-5}\frac{M}{s}](https://tex.z-dn.net/?f=-r_%7BO_2%7D%3D-r_%7BNO_2%7D%5Ctimes%5Cfrac%7B1%5C%20mole%5C%20%5C%20O_2%7D%7B2%5C%20mole%5C%20%5C%20%7B%5Crm%20NO%7D_2%7D%3D1%5Ctimes%7B10%7D%5E%7B-5%7D%5Cfrac%7BM%7D%7Bs%7D)
Answer:
Most stars are rather simple things. They come in a variety of sizes and temperatures, but the great majority can be characterized by just two parameters: their mass and their age. (Chemical composition also has some effect, but not enough to change the overall picture of what we will be discussing here. All stars are about three-quarters hydrogen and one-quarter helium when they are born.)
A. Sedimentary rock. This is because sedimentary rock contains sediments and sometimes some fossils.