The answer should be D. A rate law needs to be rate equaling the rate constant which is represented as k (make sure you use a lower case k since an upper case K is for equilibrium) times the concentrations of each reactant raised to the power of what ever order it has. (if A was a zero order it would be [A]⁰ and if A was third order it would be [A]³).
Do not get the order the reactants are confused with the coefficients in the chemical equation. (just because the reaction has 2B does not mean the rate law will have [B]². As shown in this example since it is first order therefore being [B] in the rate law)
I hope this helps. Let me know if anything is unclear in the comments.
The correct answer would be... Scientific
<span>Mr = 13 g / mol
mass = 5 g
Mol = 5/13 mol :)</span>
<span>d)Electrons need specific amounts of energy to "jump" off an atom and be emitted.</span>
Chemical reaction, generally speaking. It's a vague definition, but it's easy to remember.
