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Which of the following occurs in an endothermic reaction but not in an exothermic reaction?
exothermic
product
the bonds of a molecule
Energy is absorbed
A color change occurs.
New molecules are formed
atoms
endothermic
Which of the following stores chemical energy?
exothermic
product
the bonds of a molecule
Energy is absorbed
A color change occurs.
New molecules are formed
atoms
endothermic
Which of the following are products and reactants of a chemical reaction most likely to have in common?
exothermic
product
the bonds of a molecule
Energy is absorbed
A color change occurs.
New molecules are formed
atoms
endothermic
Which these is not a sign of a chemical reaction?
exothermic
product
the bonds of a molecule
Energy is absorbed
A color change occurs.
New molecules are formed
atoms
endothermic
The substance that is formed in a chemical reaction is called the
exothermic
product
the bonds of a molecule
Energy is absorbed
A color change occurs.
New molecules are formed
atoms
endothermic
Which of the following occurs when gasoline is burned?
exothermic
product
the bonds of a molecule
Energy is absorbed
A color change occurs.
New molecules are formed
atoms
endothermic
A type of reaction that produces an increase in temperature is
exothermic
product
the bonds of a molecule
Energy is absorbed
A color change occurs.
New molecules are formed
atoms
endothermic
A reaction in which the products contain more chemical energy than the reactants is
exothermic
product
the bonds of a molecule
Energy is absorbed
A color change occurs.
New molecules are formed
atoms
endothermic
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