<span>C. A completely new substance is formed.</span>
Answer:
D
Explanation:
The high jump of ionization energy indicates that we are trying to remove electron from noble gas configuration state.
The ionization energy data specifies that the Elements are from group 1 at period 3 or greater.
Removing the first electron require 496 kJ and the second ionization energy jump significantly due to the removal of electron from the noble gas configuration which is logical because electron try to maintain the especially stable state.
Answer:
Na + CaSO4 = Na2SO4 + Ca
Explanation:
single displacement (substitution)
they usually get decomposed
