Which is not an essential component of a voltaic cell?

a. negative electrode (anode)

b. positive electrode (cathode)

c. electrolyte

d. voltmeter

Joe shines white light into a bowl half full of water at an angle of incident of 27.5°. calculate the angle of refraction in the water given the indices of refraction for air and water are 1.00 and 1.36, respectively.

How is the atomic number of a nucleus changed by alpha decay

Acetylene gas c2h2 undergoes combustion to produce carbon dioxide and water vapor how many grams of water are produced by the same amount of c2h2?