The student suspected that the solution was contaminated by ethanol. The student heated the solution to the boiling point of ethanol (78 °C). Explain how this would
show whether or not ethanol was present in the copper sulfate solution.

Certain types of organisms such as fireflies and anglerfish can produce light through chemical reactions in a process called bioluminescence. what kind of chemical reactions occur during bioluminescence? o a) exothermic ob) endothermic oc) recomposition od) decomposition