What is the maximum [Ca2+] that can exist with 5.2 x 10-4 M C2O42- without precipitating? (Ksp CaC2O4 = 2.6 x 10-9)

Quickly what are the following of organisms that existed over a wide area but only for a limited time period called a.soft fossils b.mold fossils c.index fossils d.trace fossils

Atoms contain subatomic particles called protons and neutrons. when these protons and neutrons spilt, a lot of energy is released

In chemistry, the type of an atom (what element it is) is determined by: a) the number of protons it contains in its nucleus.b) the number of neutrons it contains in its nucleus.c) the number of protons it has in a cloud around the nucleus.d) the number of neutrons it has in a cloud around the nucleus.e) the number of electrons it exchanges with its neighbors.