a piece of aluminium of mass 1kg is heated to 100celsius and then placed in 0.4kg of water at 20celius if the mixture reaches a temperature of 60celsius what is the specific heat capacity of the aluminium if that of water is 4200j/kg

Jenny wants to test the electrical conductivity of two substances dissolved in water. she is preparing the containers for the experiment. which factor is most important for her to control? a) volumes of the solutions b) appearance of the solutions c) temperatures of the solutions d) concentrations of the solutions