What structure do all of these elements have in common?

a) number of protons
b) number of electrons
c) number of energy levels
d) number of valence electrons

If the root word engage means “to connect with something,” what does the word disengage mean in the following sentence? he disengaged the gears by stepping on the clutch pedal. a.added more engine powerb. activated a connection to the pedalc. stalled the engined. released a connection to the pedal

Which produce would best increase the amount of heat energy that is actually gained by calorimeter b

Chemical kinetics what was the rate of reaction in trial 3? choose the closest answer.