Chemistry, 29.01.2020 11:58 thomasalmo2014

In an exothermic reaction, the energy stored in the chemical bonds of the reactants is
a) equal to the energy stored in the bonds of the products
b) greater than the energy stored in the bonds of the products
c) less than the energy stored in the bonds of the products
d) less than the heat released

Answers: 2

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option B) greater than the energy stored in the bonds of the products.

Justification:

1) In an exothermic reaction, energy is released to the surroundings as product of the reaction.

2) By an energy balance (convervation of energy), you get:

Chemical energy of the reactants = chemical energy of the products + E

Since, E >0 (exothermic reaction),

chemical energy of the reactants - chemical energy of the products > 0

And finally: chemical energy of the reactants > chemical energy of the products.

Also, you need to know that chemical energy is a kind of potential energy; it is the energy stored in the bonds of the compounds.

So, the answer is the energy stored the bonds of the reactants is greater than the energy stored in the bonds of the products (option B.)

Answer from: angeljaylyn123

Answer from: Quest

There is one s orbital, and there are three p orbitals, five d orbitals, and seven f orbitals. thus, the answer is b. do not confuse the number of orbitals in a subshell with the number of electrons the subshell can hold. each orbital can hold two electrons, so the capacity of an nf subshell is 14 electrons.

Answer from: Quest

because u need two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei to form isotopes.

so since they all have the same shape? i mean maybe because m& m and reeses are both chocolates

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In an exothermic reaction, the energy stored in the chemical bonds of the reactants is
a) eq...

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