Hi friends my brain is mentally challenged so therefore i need someone to help with my science hw bc it’s 4 in the morning and i wanna go to sleep

12. 2 protons and 2 neutrons

13. decreased by 2

14. Energy

15. None

16. I believe is also none

17. None

Sorry but its about 3: 52 am and a bit sleepy.

Hope these are good answers for you!

Explanation:

Row 1: 12= 2 protons and 2 neutrons.

           13= decreases by 2

Row 2: 14= 1 proton

            15= None (I’m not sure about this one)

Row 3: 16= 1 high-energy electron

            17= Increases by 1 or 2 (This one I don’t get either)

Sorry it isn’t all perfect I haven’t done this topic in ages. I hope I got it all right for you.

the law of conservation of mass states that in a chemical reaction, the total mass of reactants is equal to the total mass of products. because atoms are only rearranged in a chemical reaction, there must be the same number of sodium atoms and chlorine atoms in both the reactants and products