As a forensic scientist, you are given the task of identifying an unknown substance found at a crime scene. Which method do you think would provide more reliable results - a flame
test or the emission spectrum? Explain.


the answer is:  

line graphs show patterns in data with variables that change over time; whereas, circle graphs show data as parts out of a whole (such as out of 100%).

a 20-cm-long, cylindrical graphite (pure carbon) rod is inserted into an oxidizing atmosphere at 1145 k and 1.013 x 105 pa pressure. the oxidizing process is limited by the diffu- sion of oxygen counterflow to the carbon monoxide that is formed on the cylindrical surface.

bcde is the incorrect answer it is a