Which description best explains a molecular bonding?

Donates electrons
Shares electrons
Charged ions attract
Occurs between metals

For general projectile motion, when the projectile is at the highest point of its trajectory, its acceleration is zero? a)the horizontal and vertical components of its velocity are zero. b) its velocity is perpendicular to the acceleration. c)the horizontal component of its velocity is zero. d)its velocity and acceleration are both zero.

Which is not true about oxygen-17 and oxygen-18?

How is sound energy produced a. vibrating objects b. objects being heated c. temperature differences d. stationary objects