Given the reaction at equilibrium: N2(g) + O2(g) → 2NO(g)
As the concentration of N2(9) increases, the concentration of O2(g) will

While unproven, it uses facts to support part of a conclusion. it is still factual and has predictive power, however.

The molar mass of a substance is defined as the mass of 1 mol of that substance, expressed in grams per mole, and is equal to the mass of 6.022 × 10 23 atoms, molecules, or formula units of that substance.

It's called the falling actionwrong subject by the way