What is the ph of a very acidic solution? 14 10 5 1

Option D, 1

Explanation:

The pH of any substance range from 0 to 14.

Where Acidic substances have pH varying with in the range of 0 to 7

and Basic substances have pH varying with in the range of 7 to 14

and the pH of 7 represents a neutral substance.

The lower is the pH of a substance , the higher is the acidity.

Thus, both pH 1 and 5 represents the acidic substance but pH 1 represents a substance with higher acidity.

Hence, option D is correct.

format change of dna.  

the answer that best describes the relative refractory period in the neuron is the resting membrane potential is restored, but concentrations of sodium and potassium are not restored to their original state.

the refractory period is the time during which another stimulus given to the neuron will not lead to a second potential. thus, because na+ channels are inactivated during this time, additional depolarizing stimuli do not lead to new action potentials.  

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