Which statement is true?

a.

opinions can be scientifically tested.

b.

scientific theories are absolute and cannot be changed.

c.

scientists have learned all they’ll ever know about science.

d.

facts can be scientifically tested.

the answer is the

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.

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