Any characteristic of a material that can be observed or measured without changing the composition of the substances in a material is a physical or chemical change?

Which type of stress results when two plates push against one another? a. compression b. tension c. force d. shear

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.)

The best solution for preventing harm to people and pets from severe hurricanes involves determining and warning residents about what