Petra finds a marking in the wall at a crime scene. She believes it may have been caused by a knife. What are the procedures for handling such evidence?

First, Petra photographs and measures the mark, then makes a - (casting, lifting, scraping) of the hole. Then she collects all the knifes in the area for comparison. She packages each of these in an immovable - ( cardboard, plastic, glass) casing with a warning label that a sharp object is enclosed.

How many miles of water are produced if 5.43 mol pbo2 are consumed

Many free radicals combine to form molecules that do not contain any unpaired electrons. the driving force for the radical–radical combination reaction is the formation of a new electron‑pair bond. consider the chemical equation. n(g)+no(g)⟶nno(g) n(g)+no(g)⟶nno(g) write lewis formulas for the reactant and product species in the chemical equation. include nonbonding electrons. n(g)n(g) select draw rings more erase select draw rings more erase select draw rings more erase n no(g)

What occurs when a cell engulfs large food particals