55: Where are the most reactive nonmetal elements found on the periodic table?
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at the top of group 17
at the bottom of group 17
at the top of group 18
at the bottom of group 18

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.

Joan writes four numbers on the board in standard form, and then she writes their scientific notation

What does the mass of 0.7891 mol of ferric oxide (fe2o3)