PLEASE HELP 30 POINTS!!
A student is conducting an experiment to determine whether a chemical reaction is exothermic or endothermic. She plans to perform the reaction inside a metal container and record any temperature changes using an alcohol thermometer. How should the experiment be modified to obtain a more reliable result?
a. she should use an insulating container
b. she should use a digital thermometer
c. the thermometer should be attached to the outside of the container
d. the chemical reaction should not take place in a solution