B cause it tells how it moves
B. Extrusion
<u>Explanation:</u>
Extrusion process is not involved in the process of formation of sedimentary rocks. These rocks are formed by following processes -
1) weathering of preexisting rocks
2) transport of the weathering products
3) deposition of the material
4) compaction
5) cementation of the sediment to form a rock
At the point when rocks are at or close to the outside of the earth they are presented to the procedures of weathering. Sediments are deposited layer upon layer. The layers are kept evenly. As sedimentation proceeds, the prior stored residue are weighed down with an expanding overburden. They are compacted, diminishing the accessible pore space and removing a significant part of the pore-water.
Answer:
B. 0.2.
Explanation:
<em>n = mass/molar mass</em>
mass of CaCO₃ = 20 g, molar mass of CaCO₃ = 100.0869 g/mol.
<em>∴ n = mass/molar mass = </em>(20 g)/(100.0869 g/mol) <em>= 0.1998 ≅ 0.2 mol.</em>
<em></em>
<em>So, the right choice is: B. 0.2.</em>
Answer:
Density (ρ) = 6820 kilogram/cubic meter
Explanation:
ρ = m/v
10.23 gram
1.5 milliliter
= 6.82 gram/milliliter
= 6820 kilogram/cubic meter
Explanation:
It is given that r = 0.283 nm. As 1 nm = .
Hence, 0.283 nm =
- Formula for coulombic energy is as follows.
where, e = C
=
=
- As 1 eV =
So, 1 J =
Hence, U =
= 8.9 eV
- Also, 1 J =
= kJ/mol
Therefore, U = kJ/mol
=