When two pairs of electrons (four total electrons) are shared between two atoms a bond is formed.
ionic
double
quadruple
single

Aknife blade is a(n) a. lever b. screw c. wedge d. inclined plane

Which statement best describes the superposition principle? a.) if two in-phase waves arrive simultaneously at a point, their amplitudes add up b.) if two out-of-phase waves arrive simultaneously at a point, their amplitudes add up c.) if two in-phase waves arrive at a point one after another, their amplitudes add up d.) if two out-of-phase waves arrive at a point one after another, their amplitudes adds up

In which of these cases are the two wave points considered to be in phase with each other?