Answer:
A. It dissolves something else
60 seconds times 60 minutes is 3,600 seconds, or one hour. 3,600 times 2 is 7,200 seconds.
What do you mean i don't understand what the question is asking
<span>Answer: The activation energy for the reverse reaction is equal to the sum of the absolute value of DH + Ea(forward) or 275 kJ + 125 kJ = 400 kJ
If you just sketch an energy diagram showing the activation energy and Delta H for the reaction, it should be apparent why this is the case.</span>