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what is the heat release

Which of the following is a reliable way to observe that a chemical change has occurred when two substances come in contact with
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2. asked by anoy
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Which of the following is a reliable way to observe that a chemical change has occurred when two substances come in contact with
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2. asked by anoy
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Consider the following reaction.2Fe2O3 --> 4Fe+3O2 Hrxn=+824.2 The Formation of 21.0 of Fe results in 1)the release of 77.5 kJ
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2. asked by Danny
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2Fe2O3 -> 4Fe+3O2 changeHrxn= +824.2 KJThe decomposition of 57.0 g of Fe2O3 results in The release of 23500 KJ of heat The
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Consider the following reaction:2Fe2O3 --> 4Fe + 3O2 ∆Hrxn° = +824.2 kJ The decomposition of 29.0 g of Fe2O3 results in a.
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2. asked by Anonymous
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Hydrogen is burned in oxygen to release heat. How many grams of hydrogen gas must be burned to release enough heat to warm a
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2. asked by Lance
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QuestionWhich of the following is a reliable way to observe that a chemical change has occurred when two substances come in
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Why does deforestation contribute to climate change?%0D%0A%0D%0A(1 point)%0D%0AResponses%0D%0A%0D%0AChainsaws release gases that
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2. asked by .....
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Identify the statement below that is true about exothermic reactions.(1 point)Responses They release heat energy to the
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Identify the statement below that is true about exothermic reactions.(1 point)Responses They release heat energy to the
1. 1 answer
2. 16 views