B is the answer to it!!!!!
I am thinking that you are asking for the
balanced equation for this chemical reaction. In order to balance this, you
have to count each element where the elements in the reactants side and the
product side should have equal number of molecules. The balanced reaction is as
follows:
<span>
</span>
<span> 2</span><span>I2 + 9/2O2 → I4O9</span>
Answer: (B.) The reaction rate is highest when sodium powder is used.
Explanation:
Five factors that affect the rate of reactions are : Temperature, concentration, nature of catalyst, chemical nature of reactants and nature of subdivision of particles (heavier size versus smaller or powdered particles).
Nature of subdivision of particles :
Since reactions occur at the boundary between two phases therefore tyhe rate of reaction depends on surface contact available between them. A powdered particle has generally more surface area than the particle in solid form.
The answer would be Chope it helps