Calcium Floride (Caf2)
Hope this helped =D
Answer:
Ne, Ar, and Kr are gases at STP, unreactive, and are generally monatomic.
Explanation:
they are unreactive and monoatomic and thats why have a very low boiling point.
We don't know what statement you want us to choose from. But, protons have a positive charge, and they are what makes an atom a certain atom.
The reaction equation is already balanced. So the mole ration of reactants and production is the ratio of the coefficients. So the mole ratio of N2 to NO2 is 1:2.
There are 138 atoms of hydrogen
