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29 November, 19:43

Suppose two chemicals are reacted together. It takes 1000 kJ of energy to break the bonds of the reactants and 850 kJ of energy are released by the formation of the products. Which statement is true about the reaction?

A. The reaction is exothermic.

B. The reaction will need an external energy source to proceed.

C. The reaction will give off 150 kJ of energy.

D. The reaction will likely be explosive.

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  1. 29 November, 23:16
    0
    The true statement is:

    B. The reaction will need an external energy source to proceed. It requires 150kJ more for it to take place. The difference between the energy consumed and the energy produced is 150kJ.
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