Question:

Most hydrocarbons,such as coal,oil & wood, are useful as fuel. their burning is an________? answer quickly !!?

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A. Physical change

B endothermic reaction

C exothermic reaction

D nuclear reaction

E. A & B

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  1. definately exothermic (C)


  2. E

  3. C - Exothermic Reaction.

    An exothermic reaction is one in which heat is given off - e,g, cumbustion (burning).  An endothermic reaction is one which absorbs heat.

  4. C

  5. your a cheater!! lol. A.

  6. C definitely

  7. Exothermic reaction! I hope my chemistry is not wrong

  8. c

    exothermic = gives off energy

    it is not E, because endothermic = sucks in energy

    it is not A, because it is a chemical change
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