Carlos is using a precipitan test at a crime scene. When he applies the antiserum, a cloudy ring forms. What Can Carlos MOST likely conclude from this reaction

What type of reaction is zn + cucl2 → cu + zncl2?

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.)

Draw the skeletal structures of two different molecules that are each made of 5 carbon atoms and 12 hydrogen atoms.