What method can investigators use to see if there are hydrocarbons present in the evidence they have collected? Apply heat
Use dry ice
Douse with water
Spray with chemicals

Hydrogen has only one electron in its only (and outer) electron shell. if a hydrogen atom were to absorb a small amount of energy, where would bohr say the electron would go? a. fly off the atom b. nowhere, it would just speed up. c. spiral inwards towards the nucleus d. move up to another shell that would form