Answer:
All chemical reactions involve energy. Energy is used to break bonds in reactants, and energy is released when new bonds form in products. In some chemical reactions, called exothermic reactions, more energy is released when new bonds form in the products than is needed to break bonds in the reactants. The opposite is true of endothermic reactions. In an endothermic reaction, it takes more energy to break bonds in the reactants than is released when new bonds form in the products. This is all an ethemic reaction.
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Answer:
The correct answer is A)
Explanation:
a warm front brings drizzly weather. The statesmen that best describes the weather shown by the blue triangles going one way and the red semi-circles going the other way on a line in the weather map is “warm front brings drizzly weather.
Answer: Fundamental, Key, vital, crucial
Explanation: