He wants to add chromium to his reactivity series. He thinks chromium is more reactive than any of the metals on the list What metal salt would he use to prove this The list is

Mercury
Copper
Palladium
Nickel

Imagine that you have produced several versions of lactase, each of which differs from normal lactase by a single amino acid. describe a test that could indirectly determine which of the versions significantly alters the three-dimensional shape of the lactase protein.

Transportation is the largest single source of air pollution in the united states. air pollution can harm the environment and human health. which technology could offer a solution to this problem? mufflers that reduce noise motors that run on electricity tires that improve gas mileage

Which element would mostly likely have an electron affinity measuring closest to zero