Water can be used to produce hydrogen gas -
2H2O gives 2H2+O2
Which option describes bond breaking in the reactant ?
a) endothermic, heat absorbed
b) endothermic, heat released
c) exothermic, heat absorbed
d) exothermic, heat released
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a one is the answer
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Answer:
Explanation:
endothermic
Breaking and making bonds
Bond-breaking is an endothermic process. Energy is released when new bonds form. Bond-making is an exothermic process. Whether a reaction is endothermic or exothermic depends on the difference between the energy needed to break bonds and the energy released when new bonds form.
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