Two moles of pcl5 are placed in a 5.0 l container. dissociation takes place according to the equation pcl5(g) pcl3(g) + cl2(g). at equilibrium, 0.40 mol of cl2 are present. calculate the equilibrium constant (kc) for this reaction under the conditions of this experiment.

Aplane travels 1000 miles in 5 hours .what is the planes average speed?

Iron is a transition metal with multiple oxidation numbers. (answer the following) a. what is the iron (ii) ion? how does it differ from the iron (iii) ion? b. if iron were to bond with oxygen, predict the formula for each oxidation number of iron. c. how would each formula be named?

You can estimate the degree to which a bond between two atoms is ionic or covalent by calculating the