<u>Answer:</u> The ratio of number of hydroxide ions to iodide ions is 2 : 1.
<u>Explanation:</u>
The chemical equation for the oxidation of iodide ion is oxidized to hypoiodite ion by permanganate follows:
![2MnO_4^-+I^-+H_2O\rightarrow 2MnO_2(s)+IO_3^{-}+2OH^{-}](https://tex.z-dn.net/?f=2MnO_4%5E-%2BI%5E-%2BH_2O%5Crightarrow%202MnO_2%28s%29%2BIO_3%5E%7B-%7D%2B2OH%5E%7B-%7D)
According to mole concept:
1 mole of a substance contains
number of particles
Moles of iodide ions = 1 mole
Number of iodide ions = ![(1\times 6.022\times 10^{23}](https://tex.z-dn.net/?f=%281%5Ctimes%206.022%5Ctimes%2010%5E%7B23%7D)
Moles of hydroxide ions = 2 mole
Number of hydroxide ions = ![(2\times 6.022\times 10^{23}](https://tex.z-dn.net/?f=%282%5Ctimes%206.022%5Ctimes%2010%5E%7B23%7D)
Taking the ratio of number of hydroxide ions and number of iodide ions are as follows:
![\frac{\text{Number of hydroxide ions}}{\text{Number of iodide ions}}=\frac{(2\times 6.022\times 10^{23})}{(1\times 6.022\times 10^{23})}\\\\\frac{\text{Number of hydroxide ions}}{\text{Number of iodide ions}}=\frac{2}{1}](https://tex.z-dn.net/?f=%5Cfrac%7B%5Ctext%7BNumber%20of%20hydroxide%20ions%7D%7D%7B%5Ctext%7BNumber%20of%20iodide%20ions%7D%7D%3D%5Cfrac%7B%282%5Ctimes%206.022%5Ctimes%2010%5E%7B23%7D%29%7D%7B%281%5Ctimes%206.022%5Ctimes%2010%5E%7B23%7D%29%7D%5C%5C%5C%5C%5Cfrac%7B%5Ctext%7BNumber%20of%20hydroxide%20ions%7D%7D%7B%5Ctext%7BNumber%20of%20iodide%20ions%7D%7D%3D%5Cfrac%7B2%7D%7B1%7D)
Hence, the ratio of number of hydroxide ions to iodide ions is 2 : 1.
<span>When storing parts outside, it is best to keep them under tarps or wrapped to stay in compliance.</span>
Answer:
²³⁰₉₀Th
Explanation:
X → ²²⁶₈₈Ra + ⁴₂He
The given equation shows the alpha emission. When He particle emit the original atom convert into the atom having mass number less than 4 and atomic number less than 2 as compared to parent atom the starting atom. It means the parent atom is ²³⁰₉₀Th.
Alpha radiations are emitted as a result of radioactive decay. The atom emit the alpha particles consist of two proton and two neutrons. Which is also called helium nuclei. When atom undergoes the alpha emission the original atom convert into the atom having mass number less than 4 and atomic number less than 2 as compared to parent atom the starting atom.
Alpha radiations can travel in a short distance.
These radiations can not penetrate into the skin or clothes.
These radiations can be harmful for the human if these are inhaled.
These radiations can be stopped by a piece of paper.
₉₂U²³⁸ → ₉₀Th²³⁴ + ₂He⁴ + energy
Answer:
The Earth is divided into two halves by the prime meridian, forming two half spheres divided vertically. The Earth is also divided into two halves by the equator, creating two half spheres divided horizontally.
Explanation:
I took it on edge ( :
I can't explain the like dissolves like part but the water and oil I can
when oil is poured into water the oil will stay at the top of the water meaning that water is more dense than oil