Iron oxide reacts with aluminum to give aluminum oxide and iron. what kind of chemical reaction is this?

The electron configuration for chromium is 1 s 2 2 s 2 2 p 6 3 s 2 3 p 6 3 d 5 4 s 1 instead of 1 s 2 2 s 2 2 p 6 3 s 2 3 p 6 3 d 4 4 s 1 . the configuration is an exception to the

How many ions that have a +1 charge will bond with an ion that has a -2 charge

Identify the lewis base in this balanced equation: fe3+ h2o fe(h2o)63+