I just took that quiz , it’s A
There are approximately 160 grams in 1 mol of fe203 molecules therefore there would be 79/160 = 0.49375 mols of fe203 molecules in 79 grams therefore 5 atoms in total for each molecule of fe203 therefore 79/160 *5 =79/32=2.46875 mols in atoms
Photosynethesis, respiration, and combustion.
Metals are the most abundant
Answer:
A number is right I think
