Reactant A contains 40 J of energy, and Reactant B contains 33.5 J of energy. The reactants combine to form product AB, which contains 104 J of energy. What is the energy transformation? a) Energy is absorbed because the product has more energy than the reactants have.
b) Energy is absorbed because the product the product has less energy than the reactants have.
c) Energy is lost because the product as more energy than the reactants have.
d) Energy is lost because the product has less energy than the reactants have.

A

Explanation:

Energy is absorbed because the product has more energy than the reactants have.

since the atomic number is the number of protons in the nucleus, as we move to the left on the periodic table, the electrostatic pull between the nucleus and the valence electron shell decreases. as we move down a group (vertical column), the valence shell energy level gets further and further from the nucleus.

answer by yourhope:

how do models compare to real-world objects?

d. most models represent a real-world object in a simpler way.

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