place the events in the correct order, from the release of acetylcholine from a neuron to receptor resensitization.
one acetylcholine binds to a
receptor, the gate is closed
two acetylcholine are tightly bound
to a receptor, the gate is closed
small cations pass through
the open pore of the receptor
excited presynaptic neuron
releases acetylcholine
the plasma membrane of two acetylcholine bind to
the target cell is depolarized a receptor; the gate opens
acetylcholine diffuses across
synaptic cleft or neuromuscular junction
acetylcholine is released
from the binding sites

Answer:

the answer is is C 465 grams

The amount of drink that needs to evaporate to reach a drinkable temperature will vary based on the specific circumstances.

To determine how much of the drink must evaporate for it to reach the drinkable temperature, we need more information about the specific drink and its initial temperature. However, in general, evaporation is a cooling process as it removes heat from the liquid. So, if a drink is initially too hot, some of it will need to evaporate for it to reach a drinkable temperature. The amount that needs to evaporate depends on factors such as the volume and temperature of the drink, as well as the desired drinkable temperature. To calculate the specific amount, you would need to consider the heat transfer properties of the liquid, the surrounding environment, and the time available for evaporation. In conclusion, the amount of drink that needs to evaporate to reach a drinkable temperature will vary based on the specific circumstances.

To know more about evaporation visit:

https://brainly.com/question/30589597

#SPJ11

Answer: oxygen

Explanation:

If the atom is neutral, it must have an equal number of protons and neutrons. Thus, we are looking for the element with 8 protons.

The number of protons an element has equals its atomic number.

So, we are looking for the element with an atomic number of 8, which is oxygen

The potassium ion will form an insoluble salt with option C: Carbonate.

The potassium ion will form an insoluble salt with option C: Carbonate. This option best matches the description of insoluble salt.

Moreover, the combination of potassium ion and carbonate will lead to the formation of an insoluble salt called potassium carbonate, a white crystalline substance. In aqueous solutions, potassium carbonate can be obtained by reacting potassium hydroxide with carbon dioxide:

2 KOH + CO₂ → K₂CO₃ + H₂O

However, the other options in the question won't lead to the formation of an insoluble salt. A soluble salt dissolves in water, whereas an insoluble salt does not. When an insoluble salt dissolves in water, it forms a precipitate that can settle at the bottom of the container when left undisturbed.

Learn more about the insoluble salt from the given link-

https://brainly.com/question/29751738

#SPJ11

Human activities have had a profound impact on the biogeochemical cycles that regulate the flow of elements and compounds in the Earth's ecosystems.

Through activities such as fossil fuel combustion, deforestation, and intensive agriculture, humans have significantly altered the carbon, nitrogen, phosphorus, sulfur, and other cycles.

These alterations have led to increased atmospheric greenhouse gas concentrations, eutrophication of water bodies, acidification of soils and water, and disruptions in ecosystem functioning. The human input is far from insignificant, as it has caused substantial changes in the natural balance of these cycles.

Recognizing the importance of minimizing human impacts and implementing sustainable practices is crucial for maintaining the stability and health of global biogeochemical cycles and the overall well-being of the planet.

To know more about the biogeochemical cycles refer here :

https://brainly.com/question/1204069#

#SPJ11

Complete question :

Considering all major biogeochemical cycles, the human input is :

A) making major alternations in most cycles.

B) insignificant.

C) limited to the carbon cycle.

D) never likely to be important.

E) several times larger than the natural fluxes of mass and energy.

Explanation:

Lustrous (shiny)

Good conductors of heat and electricity.

High melting point.

High density (heavy for their size)

Malleable (can be hammered)

Ductile (can be drawn into wires)

Usually solid at room temperature (an exception is mercury)

Opaque as a thin sheet (can't see through metals)

Answer:

I'm not sure if she wants you to simplify the ratio like I would assume you are supposed to so I would say 1:3

I would say the other is 4.5 moles of H2 can be produced

2 * 1.5 = 3 Fe

3 * 1.5 = 4.5 H2

Explanation:

hope this helps

Answer:

C. size; direction

Explanation:

By definition, a machine is referred to any device that makes work easier. It takes force to do work, hence, work refers to the application of force over a particular distance. A machine aims at making the work easy by changing how it is done. Simple machines, which include: levers, pulleys, inclined planes etc. all carry out the same thing, which is to make work easier, by changing the size/magnitude and direction of the applied force.

A simple machine tends to change the size of the inputted force by increasing it over a shorter distance. The machine increases the force applied better than it can be done manually e.g. a plier and nutcracker increases/changes the applied force better than it can be done with bare hands.

Also, a simple machine can achieve making work easier by changing the direction at which the force is applied. The machine applies the force on the object in an opposite direction or contrary to the way it was manually applied.

Answer:

attach the picture please

The correct ranking of compounds in order of increasing keq for this equilibrium is Acetone < Propanone < Benzaldehyde.

The correct ranking of compounds in order of increasing keq for the equilibrium of each of the carbonyl compounds with HCN to produce cyanohydrins is

Acetone < Propanone < Benzaldehyde.

In the above reaction, the cyanide ion acts as a nucleophile and attacks the carbonyl carbon atom in the carbonyl compound to form an intermediate compound. Then the intermediate compound formed by the reaction between HCN and the carbonyl compound undergoes an intramolecular rearrangement to form cyanohydrin.Based on the stability of intermediate compound formed, the order of increasing stability is as follows:

Acetone < Propanone < Benzaldehyde.

Since the keq is directly proportional to the stability of the intermediate, the order of increasing keq for the equilibrium of each of the carbonyl compounds with HCN to produce cyanohydrins is

Acetone < Propanone < Benzaldehyde.

The correct ranking of compounds in order of increasing keq for this equilibrium is

Acetone < Propanone < Benzaldehyde.

To know more about Benzaldehyde visit:

https://brainly.com/question/29754365

#SPJ11

Approximately 12.45 grams of solid silver chromate will precipitate when 150 mL of 0.500 M silver nitrate solution is added to excess potassium chromate.

To determine the number of moles of AgNO3 present in 150 mL of a 0.500 M AgNO3 solution, we can use the formula:

moles = concentration × volume

Given:

Concentration of AgNO3 solution = 0.500 M

Volume of AgNO3 solution = 150 mL

First, we need to convert the volume from milliliters (mL) to liters (L) since the concentration is given in moles per liter (M).

1 L = 1000 mL

Therefore, the volume of the AgNO3 solution in liters is:

150 mL × (1 L / 1000 mL) = 0.150 L

Now we can calculate the moles of AgNO3 using the formula:

moles = concentration × volume

moles = 0.500 M × 0.150 L

moles = 0.075 mol

So, there are 0.075 moles of AgNO3 present in 150 mL of the 0.500 M AgNO3 solution.

Now, let's proceed to determine how many grams of solid silver chromate (Ag2CrO4) will precipitate when the AgNO3 solution reacts with excess potassium chromate (K2CrO4).

From the balanced chemical equation:

2AgNO3(aq) + K2CrO4(aq) → Ag2CrO4(s) + 2KNO3(aq)

We can see that the molar ratio between AgNO3 and Ag2CrO4 is 2:1. Therefore, for every 2 moles of AgNO3, we will form 1 mole of Ag2CrO4.

Since we have 0.075 moles of AgNO3, we can calculate the moles of Ag2CrO4 formed:

moles of Ag2CrO4 = 0.075 mol / 2 = 0.0375 mol

To determine the mass of Ag2CrO4, we need to multiply the moles by its molar mass. The molar mass of Ag2CrO4 is calculated by summing the atomic masses of each element in the compound:

Ag2CrO4 = 2(Ag) + 1(Cr) + 4(O) = 2(107.87 g/mol) + 1(52.00 g/mol) + 4(16.00 g/mol) = 331.87 g/mol

mass of Ag2CrO4 = moles of Ag2CrO4 × molar mass of Ag2CrO4

mass of Ag2CrO4 = 0.0375 mol × 331.87 g/mol = 12.45 g

For more such questions on solid silver chromate visit:

https://brainly.com/question/32055228

#SPJ8

Answer:

A vesicle. Vesicles are involved in metabolism, transport, buoyancy control, and temporary storage of food and enzymes

When solutions of ammonium fluoride and potassium hydroxide are combined, the odor that is produced is ammonia. This is because ammonium fluoride is a salt that contains ammonium ions, which can release ammonia gas when combined with a strong base like potassium hydroxide.

The strong base causes the ammonium ions to deprotonate, releasing ammonia gas and forming water and fluoride ions. The ammonia gas has a strong, pungent odor that is often described as being similar to that of cleaning products or cat urine. It is important to handle these chemicals with care and in a well-ventilated area to avoid inhaling the noxious fumes.
The odor detected when solutions of ammonium fluoride (NH4F) and potassium hydroxide (KOH) are combined is ammonia (NH3). This reaction occurs because ammonium fluoride reacts with potassium hydroxide, producing ammonia gas, potassium fluoride (KF), and water (H2O). Ammonia has a distinct, pungent smell, often described as sharp or somewhat unpleasant. This gas is commonly used in cleaning products and as a fertilizer, but in high concentrations, it can be hazardous to human health.

To know about ammonium:

https://brainly.com/question/11173657

#SPJ11

Answer:

Option A:

Zn(s) + Cu^(2+) (aq) → Cu(s) + Zn^(2+)(aq)

Explanation:

The half reactions given are:

Zn(s) → Zn^(2+)(aq) + 2e^(-)

Cu^(2+) (aq) + 2e^(-) → Cu(s)

From the given half reactions, we can see that in the first one, Zn undergoes oxidation to produce Zn^(2+).

While in the second half reaction, Cu^(2+) is reduced to Cu.

Thus, for the overall reaction, we will add both half reactions to get;

Zn(s) + Cu^(2+) (aq) + 2e^(-) → Cu(s) + Zn^(2+)(aq) + 2e^(-)

2e^(-) will cancel out to give us;

Zn(s) + Cu^(2+) (aq) → Cu(s) + Zn^(2+)(aq)

Answer:

false. The flashpoint of a substance is the lowest temp at which it can vaporize to form an ignitable mixture in air.

One example of a naturally occurring radioactive isotope is uranium-238 (U-238).

Uranium-238 (U-238) is a radioactive isotope that exists in nature. Its half-life is approximately 4.5 billion years. U-238 undergoes a decay process called alpha decay, where it emits an alpha particle consisting of two protons and two neutrons. The daughter product of U-238 decay is thorium-234 (Th-234), which is also radioactive with a half-life of about 24 days. Th-234 further decays into protactinium-234 (Pa-234) through beta decay.

The decay chain continues until it reaches a stable isotope, lead-206 (Pb-206). The daughter products of U-238 decay are unstable and undergo further radioactive decay until a stable isotope is reached.

Source: "Uranium-238." Los Alamos National Laboratory, https://periodic.lanl.gov/92.shtml

For more questions like Radioactive isotope click the link below:

https://brainly.com/question/15266093

#SPJ11

Answer:

Biosphere

The Biosphere --contains all the planet's living things. This sphere includes all of the microorganisms, plants, and animals of Earth. Within the biosphere, living things form ecological communities based on the physical surroundings of an area.

Explanation:

Answer:

Biosphere

Explanation:The Biosphere --contains all the planet's living things. This sphere includes all of the microorganisms, plants, and animals of Earth. Within the biosphere, living things form ecological communities based on the physical surroundings of an area. hope this helps (:

Answer:D

Explanation:Each time state transforms into a solid matter thus a physical property is the answer.BRAINLIEST PLEASE

Mass of the lead cube :

Answer:

75 g

Explanation:

Mass=Density x Volume so therefore you do the density which is 1.5 g/mL times the volume which is 50.0 mL so you get 75 g because the mL cancel out in the label!

Latin was the language of learning at medieval and renaissance universities.

After about the 6th century, Latin ceased to be the mother tongue of peoples and nations. Nevertheless, knowledge and use of Latin persisted, partly because most of the Germanic peoples who settled in areas that were once part of the Western Roman Empire lacked a written culture. Therefore, Latin continued to be used for official documents. Of course, Latin was also the language of the Roman Church and its administration.

Latin maintained its role as the primary language for communicating the liberal arts and sciences from the Middle Ages through the Renaissance. Latin was the language of instruction and discussion in the schools and colleges established in the Middle Ages.

Read more about Medieval times at: https://brainly.com/question/1763830

#SPJ4

The enthalpy for Reaction 1 reversed is -109 kJ/mol, which means that the reversed reaction releases 109 kJ/mol of heat energy.

Enthalpy is a thermodynamic property of a substance that represents the amount of heat energy absorbed or released during a chemical reaction. The enthalpy change for a chemical reaction can be determined by measuring the heat energy absorbed or released during the reaction. In this case, the given chemical reaction is Reaction 1 with an enthalpy change of +109 kJ/mol. This means that the reaction absorbs 109 kJ/mol of heat energy.
To find the enthalpy for Reaction 1 reversed, we need to reverse the direction of the reaction. When a reaction is reversed, the sign of its enthalpy change is also reversed. Therefore, the enthalpy for Reaction 1 reversed is -109 kJ/mol. This means that the reversed reaction releases 109 kJ/mol of heat energy.
The enthalpy change for a chemical reaction depends on the difference in energy between the reactants and products. If the products have less energy than the reactants, the reaction is exothermic and releases heat energy, resulting in a negative enthalpy change. Conversely, if the products have more energy than the reactants, the reaction is endothermic and absorbs heat energy, resulting in a positive enthalpy change.
To know more about enthalpy visit:

https://brainly.com/question/29145818

#SPJ11

Answer:

predicted their properties

This means that the sodium bicarbonate in this experiment is the Excess reactant.

These are the elements or compounds which are involved in a chemical reaction and react to form the products.

The reactants were sodium bicarbonate and acetic acid with small amounts of the former being  unreacted at the bottom of the beaker means it's anm excess reactant.

Read more about Reactants here https://brainly.com/question/6421464

The pressure of gas canister at 1250° Celsius is 312 atm which is more than the total internal pressure. Hence, it will explode.

Calculating the pressure of the volume of gas after being heated to 1250° Celsius. This will be done through ideal gas equation which is as follows -

PV = nRT, where P is pressure, V is volume, n is number of moles, R is gas constant and T is temperature.

Converting temperature to Kelvin

T = 1250 + 273

T = 1523 K

P = 3.5×0.082×1523/1.4

Performing multiplication on Right Hand Side of the equation

P = 437.1/1.4

Performing division on Right Hand Side of the equation

P = 312.2 atm

The gas canister will explode as the pressure exceeds.

Learn more about ideal gas equation -

https://brainly.com/question/20348074

#SPJ4

Answer:                                 revolve:                                        

                                                365 days

                                                causes seasons

rotate:

causes day and night

spins

go around

the one that has one earth goes in rotate the other one goes in revolve

Answer:

Explanation:

Earth is closer to the sun and revolves around it in about 365 days. Sentences: Earth revolves around the sun in 365 days, 5 hours, 59 minutes and 16 seconds. The time a planet takes to revolve around the sun is called a year there for 365 days would be revolve.

It takes the earth abut 24 hours, or one day, to make one complete rotation. At the same time, the earth is moving around the sun. This is called a revolution there for 24 hours is revolve.

the spinning of the earth is called rotation therefore its rotate.

Earth rotates on its axis; this causes us to experience day and night. But Earth's axis is tilted 23.5 degrees (the angle is measured between Earth's equatorial plane and the plane in which it orbits our Sun) therefore causes day and night is rotate.

Instead, Earth has seasons because our planet's axis of rotation is tilted at an angle of 23.5 degrees relative to our orbital plane, that is, the plane of Earth's orbit around the sun. The tilt in the axis of the Earth is called its obliquity by scientists therefore causes of seasons is rotate.

Earth spins around its axis, just as a top spins around its spindle. This spinning movement is called Earth's rotation. At the same time that the Earth spins on its axis, it also orbits, or revolves around the Sun. This movement is called revolution therefore earth spins goes in revolve.  

Answer:

c

Explanation:

The maximum hardness obtained in a piece of steel is primarily determined by its carbon content. Steel is an alloy of iron and carbon, and the carbon atoms play a crucial role in influencing the material's hardness.

When steel is heated and then rapidly cooled in a process called quenching, the carbon atoms become trapped within the iron lattice structure. This rapid cooling prevents the carbon atoms from diffusing and forming larger crystals, resulting in a harder microstructure.

The higher the carbon content in the steel, the greater the potential for hardness. Steels with higher carbon concentrations can form more carbide particles, which contribute to increased hardness.

However, it's important to note that other factors can also affect the hardness of steel, such as the presence of other alloying elements (e.g., chromium, manganese) and the specific heat treatment processes employed. These factors can influence the formation of different microstructures and phases, affecting the steel's overall hardness.

To know more about the carbon content refer here,

https://brainly.com/question/11601708#

#SPJ11

Answer:

Mass = 43.45 g

Explanation:

Density is a value for mass, such as kg, divided by a value for volume, such as m3. Density is a physical property of a substance that represents the mass of that substance per unit volume. To find the mass of the substance, we need to multiply the volume occupied by the substance.

Mass = Density x Volume

Mass = 7.9 g/cm^3 (5.5 cm)^3

Mass = 43.45 g

Answer:

organisms cannot stay with out getting nutrients as they will not be able to repair them selves or produce energy.

Explanation: