Answer: two elements and three atoms
Explanation:
An element is the simplest substance and hence cannot be broken down using chemical reactions.
Magnesium chloride 
is an ionic compound formed by the transfer of electrons from element magnesium (Mg) to element chlorine (Cl) where Magmesium forms a cation 
by losing two electrons and chlorine forms an anion 
by gaining electron.
There are 3 atoms in Magnesium chloride which include one atom of magnesium (Mg) and two atoms of chlorine (Cl).
Based on the data given, the energy required to remove an electron from a hydrogen atom in the n = 11 state is -0.112 eV
<h3>What is ionization energy?</h3>
Ionization energy is the energy requiredto remove an electron from a neutral atom or a cation in its gaseous state.
To calculate the energy required to remove the electron from a hydrogen atom in the n = 11 state, the formula below is used:
where
substituting the values:
Therefore, the energy required to remove an electron from a hydrogen atom in the n = 11 state is -0.112 eV
Learn more about ionization energy at: brainly.com/question/1445179
Answer:
No, I don't think so at least
Explanation:
In chemistry, you do calculations to find the concentration of a solution with another solution of KNOWN concentration. Without concentrations of either solution, were would you get values from? Where would you start? :3
<u>Answer:</u> The equilibrium partial pressure of NO is 0.0034 atm
<u>Explanation:</u>
For the given chemical equation:
The expression of 
for above equation follows:
We are given:
Equilibrium partial pressure of 
= 0.0159 atm
Equilibrium partial pressure of NOBr = 0.0768 atm
Putting values in above equation, we get:
Hence, the equilibrium partial pressure of NO is 0.0034 atm
There is a co2 contotution
