307 g of Na3PO4 is mixed with 227 g of CaCl2. The reaction that occurs is given by the unbalanced chemical equation shown below:

2 Na3PO4 (aq) +3CaCl2 (aq) → Ca3(PO4)2 (s) +6NaCl (aq)

(a) Which reactant is limiting?

(b) How many grams of Ca3(PO4)2 are produced?

(c) If 150. g of Ca3(PO4)2 are recovered on the filter paper, what is the percent yield?

b. examine and describe cells

the answer is option a.

answer: atomic mass was originally used to arrange elements on the periodic table, but is no longer used to organize the modern version.

explanation:

originally atomic mass was used to arrange elements on the periodic table from left to right in a row. each column then shows similar properties of elements of a group.

in modern periodic table, the atoms are arranged in increasing atomic number. as atomic number represents the number of protons in an atom which is unique for every atom.