Raj needs to determine the chemical composition of trace evidence like paint and fiber. Which tool would Raj use to do this? comparison microscope

scanning electron microscope

microspectrophotometer

gas chromatograph

Carbon based or cells?

The higher the temperature, the increased rate constant for a reaction.(positive linear association)

Vander waals forces are inter molecular bonds that exist within molecules of the same substance. a water molecule is made up of oxygen and hydrogen atoms which share electrons between each other. the vander waals forces are forces that exist between multitude of different  molecules of water. dipole dipole forces is the type of vander waals force that exist in water. the oxygen atom which is more electronegative pulls the shared electron closer to itself thus generating a partial negative charge while the hydrogen acquire a partial positive charge. these two different charges causes attraction to occur in water molecules.