Which of the following is a basic need?
car
shelter
bike
computer

Silver tarnishes as silver metal reacts with hydrogen sulfide, h2s, in the air. in this reaction, dark silver sulfide, au2s, covers the surface of silver. when silver is polished, this coating of silver sulfide can be removed from the surface. this makes the silver shiny again. enter the coefficients that balance the tarnishing reaction equation. (type 1 for no coefficient.)

Word equation for k+ h2o yield koh + h2

When a device is used in a circuit in which the voltage is 81 v the current flowing through the device is 3 a what is the resistance of the device