2 NaN3 (s) → 3 N2(g) + 2 Na (s) Identify the number of N atoms in the reactants.

Acamcorder has a power rating of 17 watts. if the output voltage from its battery is 7 volts, what current does it use?units:

Particles vibrate in a rigid structure and do not move relative to their neighbors.

Voltaic cells produce a positive overall charge. what does this indicate? a. the reaction is likely to be endothermic. b. the reaction is spontaneous. c. the reaction is not likely to occur. d. the reaction is not spontaneous.