The core of the Earth is composed of

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.

Calculate the mass of silver needed to react with chlorine to produce 126g if silver chloride?

Particle model to predict what will happen if a sharp object creates a hole in the soccer ball