The prize is b.Normally, neuronal cabinet membranes have an unfavorable voltages throughout them (meaning the the inside is more negative relative to the exterior). In the event of an action potential (when a neuron fires), the first thing the happens is the the membrane depolarizes, meaning that the fee of the inside relative to the outside starts to reverse. This happens as soon as voltage-gated ion channels allow sodium ion (Na+, positive charged) come rush through the membrane and into the cell. Thus, the polarity that the membrane charge begins to reverse (inside an ext positive, exterior less positive), i beg your pardon is what we contact depolarization.

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Since girlfriend left off the choices, I have to just present the facts of what occurs very first in the nerve impusle. The very first thing that will certainly is take place is the sodium ios will move to the within of the nueron. The second step is the potassium ions will relocate to the within of the neuron. After those move into the nueron, calcium will then move right into the nueron. Both the sodium and also potassium have actually 1 postive charge. If the calcium ion has 2 optimistic charges.
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0.4 mol of sodium hydroxide and also 0.2 mol of hydrogen were produced in the reaction. Offer the balanced symbol equation because that the reaction between sodium and water.

Problem page burning of hydrocarbons such together pentane ( c5 h12 ) to produce carbon dioxide, a "greenhouse gas." greenhouse gases in the earth"s environment can catch the sun"s heat, increasing the typical temperature that the earth. For this reason there has been a great deal of global discussion around whether to control the manufacturing of carbon dioxide.(a) write a balanced chemical equation, consisting of physical state symbols, because that the burning of liquid pentane right into gaseous carbon dioxide and also gaseous water. (b) intend 0.350 kg of pentane are melted in air at a push of specifically 1 atm and also a temperature of 20.0 level c. Calculate the volume of carbon dioxide gas the is produced.be sure your answer has the correct number of far-reaching digits.
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