A student performed flame tests on several unknown substances and observed that all of the flame colors were shades of red. What could the student do to correctly identify these substances? Explain your answer.

The student could have make use of cobalt glass.

Explanation:

Flame test is one of the preliminary test that is done in the laboratories during the identification of chemical species. By using flame test, the particular chemical specie can be identified by its color.

From the question, it is given that the flame test the student did gave the same color that is shades of red for different compounds that he or she tested(wants to identify).

There are two possibilities; (1). All the chemical species that the student wants to identify are the same and (2). The chemical species could have mixed together (contamination).

For the second possibility which is the main problem, the student could have make use of cobalt glass for filtering.

the food using pesticides in the future will harm you by giving you diseases like cancer or something since they have things that we should not eat in it like chemicals or pesticides. that is why organic food is more expensive because they take the time to make it right and healthy for you to eat.

explanation: