The substance has a higher density than water
In an exothermic reaction, the water will increase in temperature in a calorimeter. An exothermic reaction is a reaction where heat is one of the products or heat is being released from it which will cause for the temperature inside the calorimeter to increase.
I would say A and D. A is right for sure, as for D, I'm not so sure. Hope this helps!
Answer:
Pure water is a non conductor of electricity and dilute acids in their aqueous solutions form free ions, which conducts electricity. Thus when we need to electrolyse water, a dilute acid is added to increase its conductivity.
The answer is predict, because it fits, and because someone can predict the outcome of something.
