The cytoplasm is composed of water, salt and some organic molecules. (e.g. carbohydrates)
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Answerδh > 0explanationc₆h₆ (s) → c₆h₆ (l)if you are changing it from a solid to a liquid, you are pretty much melting the solid. this requires heat energy. therefore, the reaction is endothermic (takes in energy); the system enthalpy increases as the reaction proceeds: δh > 0.
Answer from: Quest
Ican't see the chart but the density of both nickel and cobalt is 8.90 g/cm3, so it would be one of those.
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