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combustion of 0.356g of an unknown metal sample in oxygen

combustion of 0.356g of an unknown metal sample in oxygen gives 0.452g of an oxide in the form of mO2, Identify the unknown
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2. asked by Brittany
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a 9.85 g sample of an unknown metal M is burned in the presence of excess oxygen, producing the oxide M2O3 (s) and liberating
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2. asked by Kelly
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Help please:A 0.199-g sample of unknown metal (X) reacts with hydrochloric acid to produce 88.5 mL of "wet" gas at 20 °C and
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2. asked by Ally
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A 0.160-g sample of unknown metal (X) reacts with hydrochloric acid to produce 66.5 mL of "wet" gas at 20 °C and 754 mm Hg.
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2. asked by Ally
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a sample of an unknown metal has a mass of 21.6g and a volume of 8.00cm^3 . calculate the density of the unknown metal
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2. asked by Stefan
3. 2,941 views
Calculate the density of an unknown sample of metal given that a 2.3504 gram sample of metal causes the water level in a
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2. asked by josh
3. 674 views
0.356 grams of an unknown metal reacts with oxygen to form 452 milligrams of the metal oxide. Identify the metal
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2. asked by Kamal
3. 1,154 views
metallocene are metals sandwiched by two cyclopentadienyl ions, (c5h5)–. a metallocene sample of unknown metal, mc5h5 (all 5
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2. asked by Arvin
3. 540 views
-You have a sample of unkonw metal that you have heated to 100 deg Celsius (oC) in boilin water. If, unknown to you, the metal
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2. asked by kristine
3. 789 views
W=0.40X=0.60 Y=0.24 Z=0.90 6. A 100.0 gram sample of an unknown metal at a temperature of 75°C is dropped into a polystyrene
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