Consider the following enthalpy diagram. what is the overall enthalpy change dhrxn for the system? -1,300 kj -300 kj 300 kj 1,300 kj

for the reaction is 300kJ.

Explanation:

By convention:

Energy gained or absorbed is taken as positive and energy released is taken as negative.

In the question,

Reactant A + 2D is absorbing energy of amount 800kJ to reach an intermediate state and at first releasing 200 kJ of energy and then releasing 300 kJ of energy. Thus, total of 500 kJ of energy is released.

So, = Energy gained - Energy lost

Hence, for the reaction is 300kJ.

pure water does not conduct electricity very well. however, when certain substances are dissolved in water, the solution does conduct electricity. you can make a simple device that shows how well a solution conducts electricity. this device uses a flashlight bulb to indicate how well the solution conducts electricity. the better the solution conducts electricity, the brighter the bulb will glow.

explanation:

answer; protein;