Electroplating is a way to coat a complex metal object with a very thin (and hence inexpensive) layer of a precious metal, such as silver or gold. In essence the
metal object is made the cathode of an electrolytic cell in which the precious metal cations are dissolved in aqueous solution
Suppose a current of 0.490 A is passed through an electroplating cell with an aqueous solution of AgNO_3, In the cathode compartment for 90.0 seconds.
Calculate the mass of pure silver deposited on a metal object made into the cathode of the cell.
Be sure your answer has a unit symbol and the correct number of significant digits.

1. list three scientific reasons cockroaches may fly.

Which explanation is true about what happens to a ray of light when it strikes a mirror? a. a light ray is transmitted toward a mirror at a certain angle. the light ray is then reflected by the mirror at an equal angle but in the opposite direction of the transmitted ray. b. an incident ray strikes a mirror at an angle with a line perpendicular to the mirror. the light ray is then reflected at an angle equal to the angle of incidence but on the opposite side of the perpendicular line. c. a reflecting ray strikes a mirror at an angle with a line perpendicular to the mirror. the light ray is then refracted at an angle equal to the angle of the reflecting ray and on the same side of the perpendicular line. d. an incident ray strikes a mirror at an angle with a line parallel to the mirror. the light ray is then transmitted at an angle equal to the angle of incidence but on the opposite side of the parallel line. you so much! : -d take the time to try and answer correctly.

Air can be considered a mixture. which statement does not explain why?