Using the law of conservation of mass, determine the mass of FeCl2 produced during reaction. be sure to show your work. FeS + Hal = FeCl2 + H2s 131.87g 109.38g ? 51.12g

moving ball hits still ball. mover stops, hit ball moves. momentum transfer.

firearm identification is the process of analyzing the bullets and cartridge cases left at a crime scene to determine if they came from a particular firearm. marks on the bullets and cartridges may be common to every firearm of that type. these are called class characteristics.

cant without the picture! ?

option number c is the right answer.