shishcas4senokv6 shishcas4senokv6

17-01-2017
Chemistry

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Chemical processes store and release _____ in the bonds of molecules.
A: mass
B: matter
C: energy
D: atoms

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antonsandiego antonsandiego

24-01-2017

If my memory serves me well, the correct answer is: Chemical processes store and release C: energy in the bonds of molecules.

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Dejanras Dejanras

23-09-2018

Answer is: C: energy.

For example, balanced chemical reaction: 2Mg(s) + O₂(g) → 2MgO(s) + energy.

This is chemical process (chemical reaction), because new substance (magnesium oxide MgO) is formed, the atoms are rearranged and the reaction is followed by an energy change (exothermic reaction because energy is released).

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