Answer:
William Crookes????????????????
Answer:
300 gr.
Explanation:
if 204gr/100gr=solubility, then according to the condition solubility=612/x.
It means, 204/100=612/x, where x=612*100/204=300 gr.
Change the core from wood to iron. This is because iron is a magnetic material while wood is not magnetic hence cant acquire magnetism. Other factors that would increase the strength of electromagnet would be; increasing the amount of electric current, and increasing the number of winding's.
As there is the increase in Oxidation number from +1 to +2. Hence, the correct Option (A) i.e, 1 to +2,
<h3>
What is Oxidation ?</h3>
Oxidation doesn't necessarily have anything to do with oxygen.
- Oxidation occurs when an atom, molecule, or ion loses one or more electrons in a chemical reaction.
- When oxidation occurs, the oxidation state or oxidation number of the chemical species increases.
- Oxidation doesn't necessarily involve oxygen! Originally, the term was used when oxygen caused electron loss in a reaction.
Hence, Option (A) indicates the oxidation as there is the increase in Oxidation number from +1 to +2.
Learn more about Oxidation here ;
brainly.com/question/13110055
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Answer:
is the solubility of 
in 0.10 M 
.
Explanation:
Concentration of calcium nitrate = ![[Ca(NO_3)_2]=0.10 M](https://tex.z-dn.net/?f=%5BCa%28NO_3%29_2%5D%3D0.10%20M)
![[Ca(NO_3)_2]=0.10 M=[Ca^{2+}]](https://tex.z-dn.net/?f=%5BCa%28NO_3%29_2%5D%3D0.10%20M%3D%5BCa%5E%7B2%2B%7D%5D)
Solubility product of the calcium fluoride = 
Solubility of calcium fluoride in calcium nitrate solution :
(0.10+S) (2S)
The expression of solubility is given by :
![K_{sp}=[Ca^{2+}][F^-]^2](https://tex.z-dn.net/?f=K_%7Bsp%7D%3D%5BCa%5E%7B2%2B%7D%5D%5BF%5E-%5D%5E2)
Solving for S:
is the solubility of in 0.10 M .
