BIOL 1001 Chapter : Textbook Notes-Chapter 2
Document Summary
Section 1: what are atoms? into other substances by ordinary chemical means. Form all matter: atoms=fundamental structural units of elements. If fossil fuels are used in the energy-intensive stages of generating, compressing, transporting, storing, & delivering h to car, this could completely negate the reduction in carbon dioxide emissions that should be an advantage of burning h. This reaction also fills the outer shell of cl: atoms that have lost/gained e-s altering balance b/t protons & e-s, are charged, =ions. To form nacl, na loses an e-, becoming (+) charged na ion (na+), while cl picks up the e- & b/es (-) charged chloride ion (cl-: na & cl in nacl are held together by ionic bonds. If concentrations of h+ & oh- aren"t the same, the solution=acidic: when hydrochloric acid (hcl) is added to pure water, almost all hcl molecules separate into h+ & cl-
