Since Oxygen is in group 16, this element has 6 valence electrons. Valence electrons like to become as stable as possible and similar to a noble gas, which has 8 electrons. You need to find an element that will transfer its atoms to the oxygen to make 8 electrons. Looking at the periodic table, Selenium is in group 16 and will have 6 valence electrons (6 + 6 = 12). This can't transfer electrons with Oxygen. Hydrogen is in group 1 with 1 valence electron (6 + 1 = 7). This can't transfer electrons with Oxygen. Strontium is in group 2 with 2 valence electrons (6 + 2 = 8). This will transfer electrons to Oxygen, making it the most stable.
The answer is O and Sr.
Answer:
Initial rate of reaction is 
.
Explanation:
It is a second order reaction.
Initial rate of reaction = ![k[O_{3}]_{0}[NO]_{0}](https://tex.z-dn.net/?f=k%5BO_%7B3%7D%5D_%7B0%7D%5BNO%5D_%7B0%7D)
, where k is rate constant, ![[O_{3}]_{0}](https://tex.z-dn.net/?f=%5BO_%7B3%7D%5D_%7B0%7D)
is the initial concentration of 
and ![[NO]_{0}](https://tex.z-dn.net/?f=%5BNO%5D_%7B0%7D)
is the initial concentration of NO.
Here, k = 
, ![[O_{3}]_{0}=5.84\times 10^{-6}M](https://tex.z-dn.net/?f=%5BO_%7B3%7D%5D_%7B0%7D%3D5.84%5Ctimes%2010%5E%7B-6%7DM)
and ![[NO]_{0}=8.65\times 10^{-5}M](https://tex.z-dn.net/?f=%5BNO%5D_%7B0%7D%3D8.65%5Ctimes%2010%5E%7B-5%7DM)
So, initial rate of reaction = 
=
So, initial rate of reaction is
Answer:
When there is heat at the bottom of this air or water, the air or water molecules in contact with the heat start to move, and the molecules spread apart. The heated air or water becomes less dense. It rises up until it gets to air or water with the same density as it has, and when it gets there, it pushes the air or water that was there out of the way. At the same time, new air or water fills the space that was vacated when the heated molecules rose up. The air or water that gets pushed out of the way falls down. This sets up a circular motion. Air or water is heated at the bottom, travels to the top, cools, gets denser, falls, is heated again and the whole cycle starts again. Convection does not occur in space because there is no gravity. Ovens work by convection. The heating coils at the bottom of the oven heat the air which climbs to the top, cools slightly, and falls down again.
Explanation:
A) -5/8
begin with the equation 12+16n and set it equal to two. Then continue to solve for N or x if you prefer.
The Answer is A
Hope this helped ;)
