Rent an inflatable dry / wet slide will costs you start from $150. Largest giant inflatable slide raises the price easily more than $700. Rent for an inflatable obstacle course begins with $300, the longer and with more obstacles, the higher price you must pay, some longest obstacle courses will cost you more than $1000.
Oxidation is the process when oxygen combines with an element, changing the appearance of the element. When iron reacts with oxygen and changes to rust, this is an example of oxidation.
The oxidation number (or oxidation state) of an atom represents the charge that an atom in a compound would have if the compound were fully ionic. As we shall see oxidation numbers are useful even in compounds which are not ionic.