Calculate the number of molecules in 0.56 moles of iron

Which term describes a fracture in the earth at which land stays in the same place? a. joint b. fault c. split d. hinge

Isopropyl alcohol, (ch3)2choh, is a common solvent. determine the percent by mass of hydrogen in isopropyl alcohol. a) 6.71% h b) 13.4% h c) 25.0% h d) 53.3% h

Express your answer using two significant figures. 1.7 km^2