Which statement is true of covalent bonds?
they form when atoms lose electrons.
they form when atoms gain electrons.
the form when electrons are shared.
they form when ions are attracted to each other.

In this chemical reaction, 325 grams of barium (ba) react completely. how many moles of lithium (li) are produced?

Plz mark brainliest 30 points 1) find the momentum of a 12 kg snowball that is rolling with a velocity of 9 m/s. 2) an 8 ball with a mass of .5 kg is sitting at rest. it is hit by the cue ball (1 kg) traveling at 2.5 m/s. if the cue ball is at rest after the collision, how fast is the 8 ball traveling after the collision? 3) two football players are running toward each other. if the offensive player is 75 kg and is running 8 m/s, how fast must the 60 kg defensive player run in order for the two players to hit and stop?

Amap that uses a range of colors and shading to represent the elevation, depth, or landscape of specific features on earth is a/an map.