Which chemical reaction is a single replacement reaction? a. ba(clo3)2 —> bacl2 + 3o2 b. 2mg + o2 —> 2mgo c. zn + cucl2 —> zncl2 + cu

Over the last 90 years, scientists have added to the body of evidence supporting the big bang theory. what is the latest piece of evidence discovered in 2014?

Give the orbital configuration of the phosphorus (p) atom.

Amixture with the same composition throughout is!