Which of the following is a molecule when broken down to a simple particle? A. gold
B. nitrogen
C. water
D. francium

its going to be mutualism cuz they both benefit from the relationship.

~batmans wife dun dun

1.solid

2.carbon dioxide

3.helium

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