Chem 1A is a first semester course in college chemistry. Topics include atomic theory, the mole concept, stoichiometry, introductory quantum theory, electronic structure, chemical bonding, molecular structure, thermochemistry, solution chemistry, intermolecular forces, equilibrium, and acid-base chemistry.opics include atomic theory, the mole concept, stoichiometry, introductory quantum theory, electronic structure, chemical bonding, molecular structure, thermochemistry, solution chemistry, intermolecular forces, equilibrium, and acid-base chemistry.
Jump Scare. 1  A tactic used in horror movies to scare people, the jump scare is used by unimaginative filmmakers as a cheap method of frightening the audience; i.e, making them literally jump out of their seats.
Sudden noises make you jump. Youâre staying at home more and more. Could you have posttraumatic stress disorder (PTSD)? If you have experienced severe trauma or a life-threatening event â whether during a time of war or in a noncombat situation â you may develop symptoms of posttraumatic stress, or what is commonly known as PTSD.