Which of the following reactions would be classified as oxidation-reduction?
check all that apply.
2na(s)+cl2(g)→2nacl(s)
na(s)+cucl(aq)→nacl(aq)+cu(s)
nacn(aq)+cucl(aq)→nacl(aq)+cucn(s)

What is the atomic mass of an atom that has 6 protons, 6 neutrons, and 6 electrons? a) 6 b) 8 c) + 1 d) 12 e) 18

Skills of homo sapiens were found an excavation. the skulls were preserved because the bodies were frozen. so, these fossils are (blank) fossils.the image shows the evolution of skulls beginning 2 to 3 million years ago. based on the image, modern human skulls(blank) ape skulls.

What is the chemical name of the compound ti2o3? use the list of polyatomic ions and the periodic table to you answer.