Select the correct answer. Which displacement reaction is most likely to occur? Use the resources to help you.

A.
BaCl2 + Ca → CaCl2 + Ba
B.
BaCl2 + Sr → SrCl2 + Ba
C.
BaCl2 + 2Na → 2NaCl + Ba
D.
BaCl2 + Mg → MgCl2 + Ba

Ican determine the molar mass of an element by looking on the under the atomic mass for the element. for example the molar mass of phosphorus is 30.974 grams/mole. avogadro’s number tells me the amount of representative particles in 1 mole of any substance. this means 12.011 gram sample of carbon and a 32.0 gram sample of sulfur have the same number of atoms.