Answer:
Abundance for chlorine:
76.9% is 35 Cl and 23.1% is 37 Cl.
Explanation:
the average mass of one mole of chlorine is 35.453g.
Let x be the fraction of the chlorine that is number 35.
1 – x is the fraction that is number 37.
Since they have equal mass number, we equate the two expressions :
34.9689 * x + 36.9659 * (1 – x) = 34.9689 * x + 36.9659 – 36.9659 * x
34.9689 * x + 36.9659 – 36.9659 * x = 35.453
1.997 * x = 1.5359
x = 1.5359 ÷ 1.997
The decimal fraction is approximately 0.769. This means 76.9% is 35 Cl and 23.1% is 37 Cl.
Answer:
D.
Explanation:
Decompostion of stone due to acid rain
Answer:
Aquatic ecosystem has two components -
- Biotic components
2.Abiotic components
temperature and amount of sunlight are the part of abiotic component .
while living things like sponges and planktons are the biotic components of ecosystem.
Explanation:
aquatic components are of two types-
freshwater ecosystem( lakes and ponds, river and streams)
marine ecosystem(ocean ecosysyem, estuaries)
planktons-
planktons are found in limnetic zone, availability of sunlight is much here. planktons are zooplanktons and phytoplanktons are very important link in aquatic ecosystem.
sponges
In marine water, the <em>benthic zone</em> is the area below the<em> pelagic zone.</em> Here temperature decreased because of less light perception. This zone is very nutrient rich so organisms which are present here are- bacteria, fungi, sea anemone, sponges and some fishes.
