The values of Van't Hoff factors for kc and MgCl2, Ki, respectively, are O a. 1, 2 and 3
Ob 23 and 2
Oa 1, 1 and 3
O d. 1, 1 and 1

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

ugh fiel iente of insistí is did kiwis jaj

i'm wiling to try and you : )