The following results were obtained when the reaction represented above was studied at 25°C: A + 2B -> C + D
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a) Determine the order of the reaction with respect to A and B.
b) Write the rate law for the reaction.
c) Calculate the value of the rate constant, k, specifying units.
d) Determine the initial rate of disappearance of substance B in Experiment 2.
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e) Identify which of the reaction mechanisms represented below is consistent with the rate law developed in part B. Justify your choice by writing rate laws for each mechanism. Also, identify any intermediate(s) and/or catalyst(s) in your chosen mechanism. (6 pts - 1 pt for chosen mechanism, 1 pt for each rate law, 2 pts for intermediate(s)/catalyst(s))
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Mechanism #1: A -> M (slow)
M + B -> C + X (fast)
X + B -> D (fast)

Mechanism #2: B ⇋ M (fast equilibrium)
M + A -> C + X (slow)
B + X -> D (fast)

Mechanism #3: A + B ⇋ M (fast equilibrium)
M + B -> C + X (slow)
X -> D (fast)
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chemical energy is stored in the chemical bonds of atoms and molecules. it can only be seen when it is released in a chemical reaction. when chemical energy is released, the substance from which the energy came is often changed into an entirely different substance.

this chemical reaction releases energy in the form of light and heat. chemical energy is the potential energy stored in the arrangement of atoms within molecules. breaking chemical bonds requires energy, while forming new chemical bonds releases energy.

the atp molecule can store energy in the form of a high energy phosphate bond joining the terminal phosphate group to the rest of the molecule. in this form,energy can be stored at one location, then moved from one part of the cell to another, where it can be released to drive other biochemical reactions.

geosphere and hydrosphere.

this is because the geosphere has to do with geological events, while the hydrosphere controls all water on earth.