Martina has a sample of an unknown substance, she measures the substance, its mass is 13.5 grams, and its volume is 5cm^3 which metal might her sample be made of? silver density: 10.49 g/cm^3 copper density: 8.96 gm/cm^3 iron density: 7.87 g/cm^3 aluminum density: 2.7 g/cm^3

Which of the following elements is a representative element? a. chromium (cr) b. aluminum (al) c. mercury (hg) d. silver (ag)

What happens to the atomic radius when an elctron is lost

Consider the reaction of a(g) + b(g) + c(g) => d(g) for which the following data were obtained: experiment initial [a], mol/l initial [b], mol/l initial [c], mol/l initial rate, mol/l. s 1 0.0500 0.0500 0.0100 6.25 x 10^-3 2 0.100 0.0500 0.0100 2.50 x 10^-2 3 0.100 0.100 0.0100 1.00 x 10^-1 4 0.0500 0.0500 0.0200 6.25 x 10^-3 what is the rate law for the reaction?