Which of the following explanations best fits the data from the histogram above? A) The reaction produced a gas which escaped from the vial
B) Sometimes the mass increases, sometimes it decreases.
C) Several of the balances were misadjusted
D) Some data collection was careless and lost material

Which best describes the activation energy of a chemical reaction? a. the combined energy of all the reactants b. the amount of energy required for a reaction to occur c. the difference in energy between products and reactants d. the potential energy stored in the bonds of reactants and products