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[Grade 11 IGCSE Oxford Chemistry: Energy changes and detection of endothermic and exothermic reactions] Can you help me with these advanced questions?
These are 3 reactions in which we should find the change of energy or thermal change by energy (Ein=?) and energy out (Eout=?) but I couldn't plug the values in the reactions because it was a hassle and I don't understand the formulas in the picture that I sent.
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What is the atomic number and mass number of an atom with 12 protons and 14 neutrons? Explain the difference between an element and a compound. How many valence electrons are there in an atom of chlorine? What is the difference between an exothermic and endothermic reaction? Define the terms solute and solvent and give an example of a solute-solvent mixture in everyday life.
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Is Burning of a dead body is endothermic or exothermic?
the answer is exothermic, because of the fact that anything that puts off heat or burns is exothermic.
Does gas undergo an exothermic or endothermic reaction?
too many variables. your question is vague. what is the composition of the gas? what is/are the compositions room temperature states? what are the reactants within this reaction? please refine your questions and ask again
What are non examples of endothermic reaction?
Well those would typically be called exothermic reaction, which could include any reaction in which heat was not added to start the reaction, like the addition of sodium to water, or the combination of an acid and base, like sodium hydroxide and hydrochloric acid.
Chemistry model questions of plus one?
What is the atomic number and mass number of an atom with 12 protons and 14 neutrons? Explain the difference between an element and a compound. How many valence electrons are there in an atom of chlorine? What is the difference between an exothermic and endothermic reaction? Define the terms solute and solvent and give an example of a solute-solvent mixture in everyday life.
You want only chemistry questions?
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