In the following diagrams, elements are represented by x and z, which form molecular compounds with one another. Which diagram represents a molecule that has a bent molecular geometry?.

Calculate the expected ph values of the buffer systems from the experiments (a,b,c,d), using the henderson- hasselbalch equation, ph-pka+log[a-]/[ha]. use for pka values carbonic acid= 6.37, and acetic acid= 4.75.

What is the molecular weight of copper

Which process describes vaporization that takes place below the surface of a liquid? condensation melting boiling evaporation