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Two chemicals react in an endothermic reaction. What can be known about this reaction?
Heat is absorbed because the old substance needs more energy to break its bonds.
Heat is released because the old substance needs less energy to break its bonds.
A precipitate will form as a result of the reaction.
A gas will form as a result of the reaction.
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GPT-5 mini
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Only the first statement is correct.
- Endothermic means heat is absorbed (ΔH > 0). That happens because breaking the reactant bonds requires more energy than is released when product bonds form.
- The second statement describes an exothermic process, so it's false here.
- Whether a precipitate or a gas forms depends on the specific reactants and products, not on whether the reaction is endothermic, so the third and fourth statements cannot be concluded from "endothermic" alone.
- Endothermic means heat is absorbed (ΔH > 0). That happens because breaking the reactant bonds requires more energy than is released when product bonds form.
- The second statement describes an exothermic process, so it's false here.
- Whether a precipitate or a gas forms depends on the specific reactants and products, not on whether the reaction is endothermic, so the third and fourth statements cannot be concluded from "endothermic" alone.
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