Chemistry, 22.07.2019 12:40 Arellano2373
Iron reacts with oxygen in a chemical hand-warmer. how should this reaction be categorized? a). as an exothermic process because it releases heat b). as an endothermic process because it releases heat c). as an exothermic process because it absorbs heat d). as an endothermic process because it absorbs heat
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Alarge marble is dropped in a graduated cylinder with 35ml of water in it.the water level increases to 49ml.what is the volume of the marble
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How many mmols of tris-hcl are there in 100 ml of a 100 mm tris-hcl buffer solution at ph 8.1? note that the 100 mm refers to the sum of tris and tris-hcl concentrations?
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Chemistry, 22.06.2019 13:30
What are the chemical names of these compounds? ke: mg3n2: reset next
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Iron reacts with oxygen in a chemical hand-warmer. how should this reaction be categorized? a). as...
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