We're doing a spontentaity lab in chemistry and I wanted to make sure I was using the right equation to do the questions! Could someone make sure this is right??

q system = - (q water - q calorimeter)

2 answers

Or would it be
q system = - (q water + q calorimeter)
????
I'm not familiar with the experiment you are doing but I would go with the second equation with a +. Again, I'm not sure of the - sign in front of the second equation since I don't know how it's being measured.