This equation is balanced.
C + S8 -4CS2

True
False

Your friend offers to show you an intrusive igneous rock. which of the following would you expect to see?

Which of the following statements is true? a. elements in the last period are radioactive. b. atomic weight is the same as atomic mass. c. elements in the same group have the same number of electron shells. d. atomic number equals the number of neutrons in the nucleus of an atom.

Can someone me with questions 15 to 17 plz.