Questions from Crime and Investigation

Q: Why does black powder not explode unless it is ignited in a

Why does black powder not explode unless it is ignited in a confined area? What practical application (besides explosives) does this make black powder suitable for?

Q: What are primary explosives and what are they used for?

What are primary explosives and what are they used for?

Q: List at least three advantages of having an evidence-collection unit

List at least three advantages of having an evidence-collection unit process a crime scene instead of a patrol officer or detective.

Q: Criminalist Frank Mortimer is using digital imaging to enhance latent fingerprints.

Criminalist Frank Mortimer is using digital imaging to enhance latent fingerprints. Indicate which features of digital imaging he would most likely use for each of the following tasks: a. Isolating pa...

Q: What happens to the atoms of a molecule that undergoes a chemical

What happens to the atoms of a molecule that undergoes a chemical reaction? How is energy consumed in a chemical reaction? How is energy released in a chemical reaction?

Q: What is a detonator? What is the most common form of

What is a detonator? What is the most common form of detonator?

Q: What role does ammonium nitrate play in water gels, emulsions,

What role does ammonium nitrate play in water gels, emulsions, and ANFO explosives? In what commercial form can ammonium nitrate be readily obtained?

Q: In what organic liquid does a forensic scientist rinse debris recovered from

In what organic liquid does a forensic scientist rinse debris recovered from an explosion site, and why?

Q: What is the energy barrier and how does it relate to the

What is the energy barrier and how does it relate to the concept of ignition temperature?

Q: How does the speed of an oxidation reaction affect its ability to

How does the speed of an oxidation reaction affect its ability to produce a flame? What factors influence the speed of the reaction?