Mass number is the total number of protons and neutrons in the nucleus
The answer is: A
C-14 is not stable and this is the reason why it goes through radioactive decay.
Heat underneath the ground making its water boil
Answer:
12 Ethene gas, CH is completely burned in excess oxygen to form carbon dioxide and water
The equation for this exothermic reaction is shown.
CH 30, - 200, 2H,0
The table shows the bond energies involved in the reaction
bond
bond energy
(kJ/moly
614
413
C-C
CHH
0 0
СО
495
799
O-H
467
What is the total energy change in this reaction?
A-954 kJ/mol
B-1010 kJ/mol
C-1313 kJ/mol
D-1359 kJ/mol
Explanation:
thats all you said
Always use least amount of sig figs possible. So this 9.7 would be (answer): 2 sig figs
