Answer:
I'm not from the United States xd
Evolutionary Theory.
Cyclical Theory.
Economic (Mandan) Theory of Social Change.
Conflict Theory.
Technological Theory.
1/3x -3=1/4x
1/3x-1/4x = 3 (multiply by 12 to get rid of fraction)
4x-3x=36
X=36
The heat absorbed when 2.8 mol NH₄NO₃ is dissolved in water is 71.96 kJ.
<h3>What is heat?</h3>
Heat is the transportation of energy to or from a thermodynamic system.
By the formula of heat

Where n = moles
Delta Hrxn is molar heat
q = heat
Putting the values in the equation

Thus, the heat absorbed when 2.8 mol NH₄NO₃ is dissolved in water is 71.96 kJ.
Learn more about heat
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