How are the input and output forces of the parts of a complex machine related?

What is the chemical formula of the following compound

Jewelweed, a flowering plant, has seed pods that burst open when touched and forcefully eject their seeds. these structures are favorable because they a. can cause genetic changes to occur. b. prevent germination within the seed pod. c. aid in the dispersal of the species. d. attract insects that aid in pollination.

Achange in the number of neutrons in an atom will change an blank . when the number of protons changes in an atom, a new element will form.