Rosa measured out the volume of a balloon as 22.2L. The accepted value of the volume of the balloon was 22.4 L What is Rosa's % Error?

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.)

How do you identify the anode on a power source such as a battery? how do you identify the cathode? how are terms anion and cation?

How will the volume of a gas be affected if the pressure is tripled, but the temperature remains the same?