During chemical reactions the bonds between atoms break and new bonds form. Energy must be absorbed to break a bond, so breaking bonds is endothermic. Making new bonds is exothermic because energy is released. When green copper carbonate decomposes, the equation is:
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Consider the story you just read. all but one of the choices below indicate that something is living.
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What are the coefficients to balance the following equation? ba+br2=babr2
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During chemical reactions the bonds between atoms break and new bonds form. Energy must be absorbed...
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