Filtration of wastewater flowing over a surface of land with vegetation and
water is a biodegradable treatment.
Biodegradable substances are those which can be recycled for other uses
such as manure etc. The filtration of the waste water helps to remove
organic materials and pathogens present in it. The organic materials
removed can then be used for other purposes.
The pathogens are then destroyed to prevent the spread of diseases within
the area. The explanation makes biodegradable treatment most appropriate.
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A silver ring contains 1.1 x 1022 silver atoms.
I'm pretty sure it's they have the same properties, because they don't have different masses, they don't both have missing nuclei, and they don't hav a different # of protons. Can't recall much else about the two, but I distinctly remember that
Answer:
[Cl⁻] = 0.016M
Explanation:
First of all, we determine the reaction:
Pb(NO₃)₂ (aq) + MgCl₂ (aq) → PbCl₂ (s) ↓ + Mg(NO₃)₂(aq)
This is a solubility equilibrium, where you have a precipitate formed, lead(II) chloride. This salt can be dissociated as:
PbCl₂(s) ⇄ Pb²⁺ (aq) + 2Cl⁻ (aq) Kps
Initial x
React s
Eq x - s s 2s
As this is an equilibrium, the Kps works as the constant (Solubility product):
Kps = s . (2s)²
Kps = 4s³ = 1.7ₓ10⁻⁵
4s³ = 1.7ₓ10⁻⁵
s = ∛(1.7ₓ10⁻⁵ . 1/4)
s = 0.016 M
True.
Nuclear Fusion is a reaction process that involves combination of smaller nuclei to form larger one.
