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Elza [17]
3 years ago
10

I don't understand any of these

Chemistry
1 answer:
77julia77 [94]3 years ago
3 0
Ok well whats the questions
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In nerve impulse conduction, what happeris after the neurotransmitter is
AURORKA [14]

Answer:

The correct option is;

Action potentials travel the length of the axon

Explanation:

A dendrite are nerve cell projections that are used for receiving signals from other nerve cells

A neurotransmitter is the chemical, produced by the nerve cell to contain the message the nerve cell intends to transmits across a neural junction, to the cell for which the message is meant such as a muscle cell, gland cell, or other nerve cells

Therefore, the received message from the dendrite by the present neuron are transported using action action potential which is the means by which electrical signals are transported by a neuron through the length of the axon which is the projection of the nerve cell, known as the nerve fiber that conducts action potential which are electrical impulses to other destination by traveling the length of the of the axon to the location of the destination cell of the action potential

6 0
3 years ago
A piece of metal is heated by placing it in hot oil. It is removed from the hot oil and dropped into a beaker of cold water. The
olasank [31]

Answer:

a) The temperature of the beaker rises as this transfer of heat goes on.

b) Check Explanation.

Explanation:

a) The heat lost by the piece of metal is normally gained by the all the components that it comes in contact with after the heating procedure.

(Heat lost by piece of metal) = (Heat gained by the cold water) + (Heat gained by the beaker).

So, since heat is also gained by the Beaker, its temperature should rise under normal conditions.

That is essentially what the zeroth law of thermodynamics about thermal equilibrium talks about.

If two bodies are at thermal equilibrium with reach other and body 2 is in thermal equilibrium with a third body, then body 1 and body 3 are also in thermal equilibrium

Temperature of the piece of metal decreases, temperature of water rises and the temperature of the beaker rises as they all try to attain thermal equilibrium.

b) In calorimetry, the aim is usually for the water (in this case) to take up all of the heat supplied by the piece of metal. Hence, the calorimeter is usually heavily insulated (or properly called lagged). Thereby, reducing the amount of heat that the calorimeter would gain.

But in cases where the heat lost to the insulated calorimeter isn't negligible, the heat capacity of the calorimeter is usually obtained and included it is included in the heat transfer calculations.

Hope this Helps!!!

6 0
4 years ago
.formular for Charles' law​
irga5000 [103]

Explanation:

Hey there!

Charles law states that the volume of gas is directly proportional to the absolute temperature at constant pressure.

As the fact is, at a constant pressure the volume of fix amount of dry gas is directly proportional to absolute temperature from Charles law.

Since V and T are directly varying directly, we can write the equation using constant "k".

V/T = k

In this case the value of k depends on the pressure of gas, the amount of gas and also unit volume.

V/T = k .........(i)

Let us consider V1 and T1 the Volume and temperature of the ideal gases.

Then the equation is;

V1/T1 =k........(ii)

After this let change the temperature and volume be T2 and V2, respectively.

Then the equation is:

V2/T2 = k.......(iii)

Now; Equating equation (ii) and (iii)…

V1/T1 = V2/T2

So, this the formula. (i.e V1/T1 = V2/T2).

<u>Hope</u><u> it</u><u> helps</u><u>!</u>

3 0
3 years ago
A chemical measured the amount of barium sulfide produced during an experiment she finds that 823g of barium sulfide is produced
fenix001 [56]

Answer:

4.86moles of barium sulfide are produced

Explanation:

To solve this question we need to convert the mass of barium sulfide (BaS) to moles using the molar mass of BaS:

<em>Molar mass BaS:</em>

<em>1 Ba atom = 137.3g/mol</em>

<em>1 S atom = 32.1g/mol</em>

<em>Molar mass BaS = 137.3 + 32.1 = 169.4g/mol</em>

<em />

<em>Moles in 823g of BaS:</em>

823g * (1mol / 169.4g) =

<h3>4.86moles of barium sulfide are produced</h3>
7 0
3 years ago
Two plastic containers are washed in a dishwasher. One keeps its shape and the other becomes deformed.
REY [17]

Answer:

Polymers are used in everything from nylon stockings to commercial aircraft to artificial heart valves, and they have a key role in addressing international competitiveness and other national issues.

Polymer Science and Engineering explores the universe of polymers, describing their properties and wide-ranging potential, and presents the state of the science, with a hard look at downward trends in research support. Leading experts offer findings, recommendations, and research directions. Lively vignettes provide snapshots of polymers in everyday applications.

The volume includes an overview of the use of polymers in such fields as medicine and biotechnology, information and communication, housing and construction, energy and transportation, national defense, and environmental protection. The committee looks at the various classes of polymers—plastics, fibers, composites, and other materials, as well as polymers used as membranes and coatings—and how their composition and specific methods of processing result in unparalleled usefulness.

8 0
3 years ago
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