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Oxygen and Oxides
Composition of Air
- Nitrogen 78.1%
- Oxygen 21%
- Argon 0.9%
- Carbon Dioxide 0.04%
Oxides
Metals + Oxygen = Metal Oxide
Magnesium + Oxygen = Magnesium Oxide
2Mg + O2 = 2MgO
Nonmetal + Oxide = Nonmetal Oxide
Carbon + Oxygen = Carbon Dioxide
C…

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Testing for Water
Anhydrous Copper Sulfate + Water = Hydrated Copper Sulfate
(White Powder) (Blue Crystals)
CuSO4 (s) + 5H2O = CuSO4 . 5H2O (s)
Anhydrous Cobalt Chloride Paper + Water = Hydrates Cobalt Chloride Paper
(Blue Paper) (Pink Paper)

Testing Purity of Water
Anhydrous Copper Sulfate and Anhydrous Cobalt…

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