Counting Atoms C4012 C= 0=

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 molar mass of aluminum oxide (al2o3). express your answer to four significant figures.

Identify a specific example for each type of technology