A proper fuel-air mixture is most critical in the production of an efficient, nonluminous flame. For the ignition of an efficient Bunsen flame in the laboratory, identify the (most common) fuel and the required air component. 2. a. What is the dominant color of a nonluminous flame from a Bunsen burner? Explain. b. Is the temperature of a luminous flame greater or less than that of a nonluminous flame? Explain. 3. Diagram the cross section of a graduated cylinder, illustrating how to read the meniscus. 4. Experimental Procedure, Part B. What is the sensitivity of the least sensitive balance most likely to be in your laboratory? 5. A woodfire in a fireplace typically has a yellow flame whereas a (natural) gas fire (for a kitchen stove) is typically blue. Explain why the appearance of the wood flame is yellow whereas the gas flame most often appears blue.
