1. Suppose if you are throwing a ball horizontally from the top of the building with an initial speed of 20m/s, the ball touches the ground after covering a distance of 80m. Assume the
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me of the acceleration due to the gravity is 10m/s?​

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?