I can't answer this question without knowing what the specific heat capacity of the calorimeter is. Luckily, I found a similar problem from another website which is shown in the attached picture.
Q = nCpΔT
Q = (1.14 g)(1 mol/114 g)(6.97 kJ/kmol·°C)(10°C)(1000 mol/1 kmol)
<em>Q = +6970 kJ</em>
The answer is C. Since aluminum reacts with chloride displacing only Copper.
D is the answer. You cannot say that anyone is good at anything because it doesn't say that. And they were surveying the class of 2010