You are a crime scene investigator who has been called to the scene of an apparent chemical attack. You are asked to determine what type of chemical agents are present. You have a full set of colorimetric tubes. Explain in detail the process of identifying the chemicals that are present by using the colorimetric tubes. Specifically include procedures for your self-protection in the chemical hazard zone.

Neils bohr believed that electrons orbited the nucleus in different energy levels, based on strong support from

How are evaporation and sublimation similar? a both involve the formation of a gas. b both release energy to the surroundings. c both take place throughout a solid. d both take place at the surface of a liquid.

Need asap question 1 minerals are organic compounds. true false question 2 what vitamin can be found in foods like oranges, grapefruits, and broccoli? a. vitamin a b. vitamin k c.vitamin c d. vitamin d question 3 what are minerals? a. chemical elements that are needed for body processes. b. organic compounds that the body needs in small amounts to function properly. c. small molecules used to build proteins. d. an organic compound that is insoluble in water and includes fats. question 4 how many types of vitamins does the human body need? a. 15 b. 11 c. 13 d. 17 question 5 vitamins are a good source of energy. true false