Which best explains how objects become electrically charged? a. protons are rubbed from one object to another. b. a magnet rubbed on a rope electrically charges the object. c. charged atoms are rubbed from one object to another. d. electrons are transferred from one object to another.

Pinene is an unsaturated hydrocarbon found in pine resin. if pinene has m+ = 136 and contains 1 double bond(s) and 2 ring(s); what is its molecular formula? enter the formula in the form ch first, then all other atoms in alphabetical order; do not use subscripts. the formula is case-sensitive