A. deposition
this means that it was moved from one place to another and can be transported by ice, water, gravity, or wind.
For each of the situations below, state whether it describes erosion, weathering, or possibly both.
Answer:
Erosion
Explanation:
The blowing away of the top layer of the soil at a Michigan farm is best described as scenario that shows wind erosion.
Erosion is the removal of the top layer of the earth on which plant grows. In short is the washing away of soil by stream or blowing away by wind.
When soil is blow away, it is a pure case of erosion. The process of erosion usually follows weathering or sometime occurs together with it.
Weathering is the physical disintegration and chemical decomposition of rocks to form sediments and soils.
Often times, the process of weathering and erosion occurs together. It is loose weathering products that are carried away during erosion.
In the soil layer at Michigan, the process of erosion by wind is current taking place by ablation.
Mass after 60 years:
2 kg of cesium-137 will remain after 60.0 years.
What is Half-life?
The duration needed for a quantity to decrease to half of its initial value is known as the half-life.
Given:
N0 = is the initial amount of cesium-137 = 8.0 Kg
N = is the amount remaining after a time = Unknown
t = Duration of cesium-137 decay in 8.0 Kg = 60 years
t1/2 = half-life of cesium-137 = 30.0 years
Formula = N/No = (1/2)^t/t1/2
After putting the value:
N/8= (1/2)^60/30
N/8= (1/2)^2
N/8= 1/4
4N= 8
N= 8/4
N= 2 Kg
As a result, 2 Kg of cesium-137 will be present after 60 years.
Learn more about the half-life here,
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Answer:
The systematic name of the complex is: ![[Cu(en)_2(H_2O)_2]I_2](https://tex.z-dn.net/?f=%5BCu%28en%29_2%28H_2O%29_2%5DI_2)
diaquabisethylenediaminecopper(II) iodide
Explanation:
= Given complex whose naming is to be done:
Rules for naming of the coordination compounds :
- The name of ligand should be written first and then metal.
- The charge of metal indicated with the Roman numerals and enclosed in the parenthesis after metal name.
- The ligand's names written should be in an alphabetical order before the metal ion.
- Ligands that include a numerical prefix in the name use the prefixes bis or dia for 2, tris for 3, or tetrakis for 4 to indicate their number.
- If the complex ion is an anion, we drop the ending of the metal name and add –ate.
The cationic part of the complex: diaquabisethylenediamine copper(II)
The anionic part of the complex: iodide
The systematic name of the complex is:
diaquabisethylenediaminecopper(II) iodide
