Can someone help me with this pls?

here's the balanced chemical equation for above reaction,

CaC2 + 2 H20 =》C2H2 + Ca(0H)2

so, the values of the blanks are :

blank 1 :

=》1

blank 2 :

=》2

blank 3 :

=》1

blank 4 :

=》 1

thats how its supposed to be

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