Write an equation for the reaction of magnesium oxide with sodium chloride to produce magnesium chloride and sodium oxide.
14. show the formulas of the reactants.
15. show the formulas of the products.

16. write the balanced the equation for this reaction.

17. what type of chemical reaction is this? how do you know?

the ideal gas law equation is as follows

pv = nrt

where p - pressure

v - volume

n - number of moles

r - universal gas constant

t - temperature

so if the pressure, volume and temperature are already known

we are left with n and r

since r is the universal gas constant that has a known fixed value then r too is known

so we are left with 'n'

once we know temperature volume and pressure

we can find the number of moles of gas present using the ideal gas law equation

this is not my own answer, this is an answer for the same question by the user blahblahmali. i do not claim ownership of this account.