Consider the following reaction: Cl2 + Na2S → 2NaCl + S
The percent yield of sulfur when 71.0 g of Cl2 is
reacted in excess Na2S solution is 73.0 %.
What is the actual mass of sulfur yielded by this
reaction?
(Molar mass of S = 32.1 g/mol, molar mass of Cl2 = 71.0
g/mol)

periodic trends is an atom that gets larger as the number of electronic shells increase, the radius of atoms increases as you go down a certain group in the periodic table of elements. in general, the size of an atom will decrease as you move from left to right of a certain period.

so here we go

atomic mass

239 + 1 = y + 134 + 3 combine like terms

240 = y + 137             subtract 137 from both terms

240 - 137 = y

103 = y

atomic number

94 = z +54 + 0

94 = z + 54               subtract 54 from both sides.

40 = z

answer

c

explanation: