What is the main difference between producers and consumers? A. Producers make their own energy, while consumers must eat other things for energy.
B. Producers absorb energy from other organisms, while consumers get their energy from the sun.
C. Producers absorb energy from other organisms, while consumers must eat other organisms for energy.
D. Producers get their energy from the sun, while consumers absorb nutrients obtained from decomposing dead organisms.

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the number of valence electrons for each molecule or ion is shown beneath the structure. remember hydrogen will not have more than two electrons. this hydrogen is part of a covalent bond (sharing two electrons). a double bond here would cause hydrogen to share four electrons with phosphorus.

the potential energy of the reactants is 200j.

from the energy diagram, the energy of the product formed is 350j; this means that, this reaction is an endothermic reaction, because it absorbs energy from its environment.