What would you expect to happen to the energy while a piece of paper is burning? a there would be more energy before the paper is burned than after the paper is burned. b there would be more energy after the paper is burned than before the paper is burned. c the amount of energy before and after the burning paper depends on the heat of the flame. d there is the same amount of energy before the paper is burned and after the paper is burned. answer !

The table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 9 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of tthe table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 9 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.

Which of the following statements best explains why chemistry is testable a) it can measure data by experiments b) it cannot add new evidence c) it cannot be verified d) it is biased

What do many bases have in common? apex chemistry sem 2