- Explain why there are different types of atoms. - Describe the difference(s) between an atom and an element.
- Identify things that can be found in a home that is considered an element.​

Ibeg i need 20. a reaction produces 4.93 l of oxygen, but was supposed to produce 1 mol of oxygen. what is the percent yield?

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.)

Melissa is interested in her family tree and how her family has changed over its many generations. melissa probably more closely resembles