Answer:
a
Explanation
Bc I took the test, good luck with that guys
The refractory period makes the cell rest. In this period, the cell becomes able to depolarize again by collecting ions.
Answer:
When the volatile gases are hot enough (about 500 degrees F (260 degrees C) for wood), the compound molecules break apart, and the atoms recombine with the oxygen to form water, carbon dioxide and other products. In other words, they burn.
Explanation:
that is my answer.
Analytical
Analytical chemistry seeks to determine the composition of substances.
I'm pretty sure that it's either 83.2% or 91.4%