3 years ago

What do the peaks represent

1 answer:

monitta3 years ago

6 0

An exothermic reaction is a chemical reaction that releases heat. It gives net energy to its surroundings. That is, the energy needed to initiate the reaction is less than the energy released. ... Δ H = (energy used in forming product bonds) − (energy released in breaking reactant bonds)

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Considering that the book is moving with constant speed, the force applied by Anna must be the same that the friction force:

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