4. An unknown piece of metal has a mass of 890 g and volume of 100 mL . Find the density of the unknown metal. Use the chart below to find the name of the
unknown metal.
Density Values of Some Metaly_
Substance
Density (g/mL)
Aluminum 2.7
Brass
8.4
Copper
8.9
Iron
7.9
Lead
11.3
Nickel
8.9
Tin
7.3
Zinc
7.1

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.

Ill give brainiestif one neutron initiates a fission event that produces two neutrons in the products, how many new reactions can now be initiated? if each of the neutrons produced in the first fission event then initiates a fission event that produces one neutron in the products, how many new reactions can now be initiated by each neutron? how many neutrons in total were produced by the two fission events described?

Surface currents are caused by blank space . question 14 options: surface currents are caused by? differences in water temperature high salinity differences in density wind forces