In a process of electroplating a spoon a steady current of 1.26a was passed through a copper volt ammeter for 4800s calculate the mass of copper deposited electrochemical equivalent constant 3.3*10^-4

Which of the following is the phase that results when the moon is on the opposite side of the earth from the sun? a. quarter moon b. crescent moon c. new moon d. full moon

Where do magnetic lines of force enter earth?

Select all the correct answers. which changes will increase the rate of reaction during combustion? decreasing the area of contact between the reactants adding more oxygen to the reaction removing heat from the reaction changing the reactants from solid form to powdered form lowering the exposure of the reactants to air