CHEM 1320 Study Guide - Barium Nitrate, Magnesium Nitrate, Calcium Nitrate

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11 Mar 2014
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The objective of this lab experiment was to look at the elements in a group (alkaline earths and halogens) and determine how alike and how different they are. Nitrates (barium nitrate, calcium nitrate, magnesium nitrate, strontium nitrate) and an. Na2co3, unknown were tested with h 2 so4. Through the experiment it was discovered that when combined with the above solutions, some elements (such as strontium and barium) form precipitate pretty readily, while others such as magnesium do not. Also, bromine, chlorine, and iodine, when tested for oxidizing powers, demonstrated the fact of like dissolves like . This simply means that polar dissolves polar, and nonpolar dissolves nonpolar. The results obtained do not necessarily differ from what was expected, however not much was expected. Much was not known about the solubilities or oxidizing powers, therefore giving way to not many expectations. As for the similarities in the elements" groups, of course there will be similarities along with differences.