Thursday, May 17, 2012

Blog 11.1: Activity Series

1a.Nitrate is a "spectator ion" because it doesn't do any of the reacting, it stays the same.
1b. Mg is oxidized, Ag is reduced.
2. If X is higher than Y+2 on table J, it will react.
3. An activity series is a list of elements in order of their reactivity. An activity series is used to predict which metal is more reactive than than another. This is done by looking at table J. The higher the element on the chart, the more reactive it is. If an element is lower than another, the element is less reactive.
4. Gold, silver, and copper aren't very reactive, so when they are found, they're in their purest form. The more reactive metals turn into ions by reacting with things like oxygen. This means when they're found, they aren't in their purest form. Instead, they're an ore.
5.Copper ore was mixed with charcoal and iron ore in a furnace. This reduced the ore to pure copper. Initially bronze was made out of copper and arsenic to form arsenic bronze.

Enrichment: Ag+1 Is used in photography to create images. The part of the image that is sensitive to light uses silver salts to burn and trap the image.

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