(Na2Cr2O7) all the numbers are bellow not over
<span>Explain the difference between a weak acid and a strong acid according to the Arrhenius theory his question in english</span>
Polar will always have the higher boiling point because they have strong van der waal forces
In chemistry, a solution is a homogeneous mixture composed of two or more substances. In such a mixture, a solute is a substance dissolved in another substance, known as a solvent.
Number of moles = mass of product / molecular mass
=mass of product (MgO) / 40.3
Since the mass of MgO is not given in the question, the correct answer choice cannot be given. However, proceeding witht eh above formula will enable you to find the correct number of moles given the mass of MgO.