Answer:
120°
Explanation:
Valence electrons of boron = 2
Valence electrons of chlorine = 7
The total number of the valence electrons = 3 + 3(7) = 24
The Lewis structure is drawn in such a way that the octet of each atom in the molecule is complete. So,
The Lewis structure is:
There is no lone pair involved, so, It is of type AB₃.
According to the theory, the atoms will form a geometry in such a way that there is minimum repulsion and maximum stability.
So, it is of triangular shape, with bond angle , 120 ° .
Answer:Noble gases:
are highly reactive.
react only with other gases.
do not appear in the periodic table.
are not very reactive with other elements.
Explanation:Noble gases:
are highly reactive.
react only with other gases.
do not appear in the periodic table.
are not very reactive with other elements.
Answer:

27.70 is
for the reaction.
Explanation:

The equilibrium constant of the reaction = 
The expression of equilibrium constant is given by :
..[1]

The equilibrium constant expression for above reaction can be written as:
![K_c'=\frac{[COBr_2]^2}{[CO]^2[Br]^2}](https://tex.z-dn.net/?f=K_c%27%3D%5Cfrac%7B%5BCOBr_2%5D%5E2%7D%7B%5BCO%5D%5E2%5BBr%5D%5E2%7D)
( from [1])

27.70 is
for the reaction.
No, firstly bc stainless steel and carbon steel mixed with different things, high-density metals and carbon.
High-density metals and carbon both has different density which will affect the steel when they combined with iron. So it cant be the same.