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A release of energy is a sign that
coefficients
the bonds of a molecule
energy change
reactants to the surroundings
a chemical change is taking place
adding a catalyst
atoms are rearranged
endothermic
A chemical equation is balanced by changing or adding
coefficients
the bonds of a molecule
energy change
reactants to the surroundings
a chemical change is taking place
adding a catalyst
atoms are rearranged
endothermic
What happens in a chemical reaction?
coefficients
the bonds of a molecule
energy change
reactants to the surroundings
a chemical change is taking place
adding a catalyst
atoms are rearranged
endothermic
Which of the following will increase the rate of a reaction?
coefficients
the bonds of a molecule
energy change
reactants to the surroundings
a chemical change is taking place
adding a catalyst
atoms are rearranged
endothermic
Which of these are a sign that a chemical reaction has occurred?
coefficients
the bonds of a molecule
energy change
reactants to the surroundings
a chemical change is taking place
adding a catalyst
atoms are rearranged
endothermic
In an exothermic reaction, energy is transferred from
coefficients
the bonds of a molecule
energy change
reactants to the surroundings
a chemical change is taking place
adding a catalyst
atoms are rearranged
endothermic
A reaction in which the products contain more chemical energy than the reactants is
coefficients
the bonds of a molecule
energy change
reactants to the surroundings
a chemical change is taking place
adding a catalyst
atoms are rearranged
endothermic
Which of the following stores chemical energy?
coefficients
the bonds of a molecule
energy change
reactants to the surroundings
a chemical change is taking place
adding a catalyst
atoms are rearranged
endothermic
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