The refractory period makes the cell rest. In this period, the cell becomes able to depolarize again by collecting ions.
<span>On a very small scale, the numbers of particles of each substance in a reaction are represented by the coefficients in the balanced chemical equation describing the reaction. Hope this answers the question. Have a nice day.</span>
Answer:
Sodium reacts with the oxygen in air to form sodium oxide, and traces of yellowish sodium peroxide. ... Probably, the reaction with atmospheric oxygen will be faster, because I have never seen sodium metal turning whitish on exposure, though it does lose its lustre and and reactivity (just the surface).
Explanation:
Reaction rate is a measure of speed of a chemical reaction.
Usually, based on rates, reactions can be divided into two parts:
- Slow reactions which usually takes a long time.
- Fast reactions which takes place completely in seconds or microseconds.
Reaction rate can be defined as a change in the concentration of a reactant or product per unit time:
The unit is mol dm⁻³ s⁻¹
Reaction rate = 
The measurement of the reaction rate is based on the disappearance of a reactant or appearance of a product with increasing reaction time.
Learn more:
Reaction rate brainly.com/question/9642960
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