What does the enthalpy of reaction measure? O A. The amount of energy required to raise the temperature of a
substance
O B. The amount of energy required to make a chemical reaction
happen
O c. The amount of energy that is used or released as heat in a
reaction
O D. The amount of energy stored in the chemical bonds of the
reactants

Determine the mass of fuel required for the expected energy consumption in the united states for the next ten years. energy use per person per year in the united states = 3.5 x 1011joules base calculations on current population of 310,000,000.

Reaction rate depends on how many molecules are coming into contact with each other with enough energy to react. increasing the temperature of the reactants will increase -

The characteristic of two different types of reactions are shown below. reaction a: electrons are gained by the atoms of an element. reaction b: protons are lost by the atom of and element. which statement is true about the atoms of the elements that participate in the two reactions? a: their identity changes in both reaction a and b. b: their identity changes in reaction a but not b. c: their identity changes in reaction b but not a. d: their identity remains the same.