Temperature of the medium wavelength
Answer: a ) NaCl
b) No compound.
Explanation:
Atomic number of A is 11 , thus it is sodium. It has electronic configuration of 2,8,1 and thus has 1 valence electron and can form
.
Atomic number of B is 18 , thus it is argon. It has electronic configuration of 2,8,8 and thus it is an inert gas.
Atomic number of C is 1 , thus it is hydrogen. It has electronic configuration of 1. It can only share electrons.
Atomic number of D is 17 , thus it is chlorine. It has electronic configuration of 2,8,7 and thus has 7 valence electron and can form
.
a) A and D :
Here Sodium is having an oxidation state of +1 called as
cation and anion is
. Thus they combine and their oxidation states are exchanged and written in simplest whole number ratios to give neutral ![NaCl](https://tex.z-dn.net/?f=NaCl)
b) B and C
As B is an inert gas , it wont combine with C.
Answer:
During this reaction electron is transfer from copper to silver.
Explanation:
Ionic equation:
Cu + 2Ag⁺ → Cu²⁺ + 2Ag
Given equation shows that the silver on left hand side is present in the form of cation. The charge on silver is +1 it means one electron is lost by one silver atom. While copper is present in neutral form with oxidation state zero.
Thus copper lose two electron and gain +2 charge these two electrons are accepted by two silver atoms and became neutral.
This equation shows the redox reaction.
Silver gets reduced by gaining the electron and copper gets oxidized by losing the electrons.
Oxidation:
Oxidation involve the removal of electrons and oxidation state of atom of an element is increased.
Reduction:
Reduction involve the gain of electron and oxidation number is decreased.
The magnitude of these forces is directly proportional to boiling and melting points. In addition, molecular polarity<span> affects </span>solubility<span> in that polar molecules are best solvated by polar solvent molecules and nonpolar molecules are best solvated by nonpolar solvent molecules; i.e., "like dissolves like".</span>
Answer:
We, apply equal torque to both spheres and measure their final angular acceleration.
Explanation:
The moment of Inertia of solid sphere will be (2/5)mr²
The moment of Inertia of hollow sphere will be (2/3)mr²
Thus, the moment of inertia of inertia of hollow sphere is greater than that of the solid sphere. Since, the torque is equal to the product of moment of inertia and angular acceleration.
Therefore, we design a test such that we apply the same amount of torque to both the spheres. Due to greater amount of moment of inertia the hollow sphere will acquire high angular acceleration, while solid sphere will acquire low angular acceleration.
Hence, by the measurement of final angular acceleration, we can determine, which sphere is which.