Chemistry, 29.03.2021 16:50 zanestone12
When aluminum metal is exposed to atmospheric oxygen (as in aluminum doors and windows), it is oxidized to form aluminum oxide. How much heat is released by the complete oxidation of 24.2 grams of aluminum? The thermochemical equation is 4Al(s) + 3O2(g) → 2Al2O3(s) ∆H = -3352 kJ
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When the chemicals iron sulfide (fes) and hydrochloric acid (hcl) are combined, bubbles appear from the mixture. 1. does the appearance of bubbles indicate a physical or chemical change? 2. why do the bubbles indicate this change? 3. what property is this?
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When aluminum metal is exposed to atmospheric oxygen (as in aluminum doors and windows), it is oxidi...
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