Iodine and Calcium is the correct answer
Part 1 :- Super gaint star have mass from 10 to 70 solar masses and brightness from 30,000 upto hundreds of thousand times the solar luminosity
blue super giant surface temperature is 20,000 to 50,000 degree Celsius example :0 Rigel its mass is around 20 times the sun mass it give light which 60,000 sun together give .
part 2 :- HR diagram : hertzsprung -Russel diagram ( attached below)
Explanation:
The given reaction is as follows.

Value of equilibrium constant is given as
= 4.3 \times 10^{6}[/tex].
Concentration of given species is
= 0.010 M;
= 10.M;
= 0.010 M.
Formula for experimental value of equilibrium constant (Q) is as follows.
Q =
Putting the given concentration as follows.
Q =
Q = 
Q = 
It is known that when Q >
, then reaction moves in the backward direction.
When Q <
, then reaction moves in the forward direction.
When Q =
, then reaction is at equilibrium.
As, for the given reaction Q >
then it means reaction moves in the backward direction.
Thus, we can conclude that the reaction is moving in the backward direction, that is, right to left to reach the equilibrium.
Answer:
<h3>magma that is rich in feldspar and silica is called STRATOVOLCANO.</h3>
The answer is B) gain 8 electrons