The movement overall of molecules from regions of high concentration to regions of low concentration is called . a. diffusion

b. osmosis

c. concentration

Abullet found at a crime scene may be used as evidence in a trial if the percentage of metals match to the composition of metals in a bullet from the suspect's ammunition. a forensic scientist's analysis of the bullet shows that it contains 11.9 g of lead, 0.5 g of tin, and 0.8 b of antimony. what is the percentage of lead metal in the bullet? express your answers to the one's place.

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What energy is it when you flip on a switch on a lamp