Forensic Chemistry

A written record of all people who have had possession of an item of evidence.

• Chain of Custody

• Trace Evidence

• Locard exchange

Any place where evidence maybe located to help explain events.

• Secondary Crime Scene

• Crime Scene

• Circumstantial evidence.

A negatively charged object and a positively charged object will...

• attract.

• repel.

• not experience an electric force.

• implode.

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

How many neutrons would Fe-56 have?

• 56
• 26
• 30
• 33

The higher the frequency the ______ the energy. 

• higher
• lower
• neither, stays the same

Tags

NGSS.HS-PS4-1

Which electromagnetic waves have the highest frequencies and the shortest wavelengths?

• microwaves
• visible light
• gamma rays

Tags

NGSS.HS-PS4-1

What part of the atom or molecule does infrared radiation affect

• the nucleus
• the electrons
• the  bonds
• the charge

Tags

NGSS.HS-PS4-3

The independent variable on an IR spectra is 

• wave length 
• wave number
• frequency squared
• transmission

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-3

The dependent variable on an IR spectra is 

• wave length 
• wave number
• frequency
• transmission

Tags

NGSS.HS-PS4-1

Ink can be separated by a method of -----------------------------------------------

• distillation

• filtration

• chromatography

• sedimentation