Answer: 241. 8g. Add the mass of Fe, 3 N masses (because of the 3 outside the parenthesis), and add the 9 O because of the 3 next to it and the 3 outside. This results to 55.846+42.0201+143.946g that equals 241.8g. I hope this helps
Subduction leads to composite, or above ground
Answer:
Draw a data table (search if you are unsure) and you then have to draw an atom diagram, make sure to label it, then submit your work.