Complete the following sentence. Reduction is the __________ of electrons.

The number of atoms and properties are different int he reactants and the products.

Answer:Super-giants

Explanation:

CH3COOH (aq)  + NaOH(aq) ⇒ CH3COONa(aq) + H2O(l)

I                       0.16                         0.08                                    0

C                     -0.08                       -0.08                                  0.08

E                     0.08                          0                                        0.08

PKa of CH3COOH  = 4.74

PH    = PKa  = log[CH3COONa]/[CH3COOH]

= 4.74   + log0.08/0.08

= 4.74 + log1

= 4.74

That is, we can calculate the concentration of hydronium in the solution by dividing the total concentration of hydrogen ions in the solution by the total volume of the mixed solution. The result is the -log of the pH of the solution. If the pH is higher than desired, adjust with a hydrochloric acid solution. If the pH is low adjust with caustic soda.

Fill a plastic pipette with the appropriate solution add a few drops to the solution in the beaker, and wait at least 20 seconds before reading the pH on the meter. When equal parts acid and base are mixed, the two chemicals essentially cancel each other out, producing salt and water. Mixing equal parts of a strong acid and a strong base produces a neutral solution that maintains a pH of 7. Such reactions are called neutralization reactions.

Learn more about Acetic acid here:-https://brainly.com/question/24304533

#SPJ4

Answer:

Pancreas.

Explanation:

Living systems are self-organized life forms and are known to be very much interactive with their surroundings or environment. Also, living systems are dependent on the flow of information, matter and energy at various levels.

Some examples of living systems in organisms are respiratory system, nervous system, digestive system, and circulatory system.

Additionally, living systems comprises of the following components; cells, organs, muscle, tissues, blood, etc.

An endocrine system refers to a series of ductless glands and organs responsible for the production and secretion of hormones that are used by the body for the performance of various functions such as metabolism, controlling growth, reproduction, mood, sleep, etc. These hormones are secreted directly into the circulatory system (blood) and then transported to the organs and tissues in the body.

Pancreas is one of the glands of the endocrine and digestive systems that produces insulin to help control the body's sugar levels and enzymes which aid in digestion.

Answer:

4092 atoms of iron i am guessing

Explanation:

Given what we know about the mechanisms surrounding the biological movement of substances, we can confirm that when two substances in a secondary active transport move in the same direction, it is called a symport.

A secondary active transport harnesses the electrochemical energy generated by its movement of one substance, to aid the movement of the other. These movements can be of two types, depending on the directions:

An antiport transport will move both substances in opposite directions, meaning one out of the cell and one into the cell. The transport described in the question is that of a symport, given that it moves both substances in the same direction.

To learn more visit:

https://brainly.com/question/2503897?referrer=searchResults

Unlike the mercury-in-glass thermometer, the contents of an alcohol thermometer are less toxic and will evaporate quickly. The ethanol version is the most widely used due to the low cost and relatively low hazard posed by the liquid in case of breakage.

Hope that helps!

Answer:

Where is the data table?

The calcium ion has 18 protons, 20 neutrons, and 20 electrons.
The relationship between the components a and b is Inverse proportion.


The calcium ion (Ca2+) has a 2+ charge, indicating that it has lost 2 electrons from its neutral state. To determine the number of protons, neutrons, and electrons in the calcium ion, we need to consider its atomic number and mass.

The atomic number of calcium is 20, which indicates that it has 20 protons. Since the calcium ion has a 2+ charge, it means it has lost 2 electrons. Therefore, the number of electrons in the calcium ion is 20 - 2 = 18.

The mass number of calcium is 40 amu, which represents the total number of protons and neutrons. Since the calcium ion has 20 protons, the number of neutrons can be calculated as 40 - 20 = 20.

So, the correct option is: d. 18 protons, 20 neutrons, and 20 electrons

In the expression a∼1/b, the relationship between the components a and b is an inverse proportion. This means that as the value of a increases, the value of b decreases, and vice versa. The symbol ∼ represents the proportional relationship between a and 1/b, indicating that they are inversely related. Therefore, the correct answer is: Inverse proportion

To know more about calcium , click here, https://brainly.com/question/32135261

#SPJ11

Reaction equilibrium is the situation in which a chemical reaction's forward and reverse reaction rates are equal. The system is said to be in a steady state when the concentrations of the reactants and products remain consistent across time.

In other terms, a chemical reaction is said to be in equilibrium when the concentrations of its reactants and products no longer change over time.

Learn more about reaction:https://brainly.com/question/28984750

#SPJ1

Answer:

i have no idea i ma doing this for the point good luck though

Explanation:

The cell potential for all four reactions is -0.11 V.

The overall balanced reaction for the given half-reactions is:

\(2 Ga_3+(aq) + 3 Sn_2+(aq) - > 2 Ga(s) + 3 Sn_4+(aq)\)

The standard cell potential for this reaction is:

Ecell = E°cell - nFEcell

The standard reduction potential for the reaction is:

E°cell = \(E(Ga_3^3+/2) - E(Sn_2^2+)\)

= 0.27 V - 0.38 V

= -0.11 V

The Faraday constant is 96,485 C/mol.

The number of electrons transferred is:

n = 2 x 3 x -1 = -6

Ecell = -0.11 V - 96,485 x (-6)

= -96,485 V

The cell potential for this reaction is therefore -96,485 V.

The cell for the reaction:

\(2 Ga_3+(aq) + 3 Sn_2+(aq) - > 2 Ga(s) + 3 Sn_4+(aq)\) is:

E°cell = \(E(Ga_3^3+/2) - E(Sn_2^2+)\)

= 0.27 V - 0.38 V

= -0.11 V

The cell for the reaction: \(2 Ga_3+(aq) + 3 Sn_2+(aq) - > 2 Ga(s) + 3 Sn_4+(aq)\) is:

E°cell = \(E(Ga_3^3+/2) - E(Sn_2^2+)\)

= 0.27 V - 0.38 V

= -0.11 V

The cell for the reaction is:

E°cell = \(E(Ga_3^3+/2) - E(Sn_2^2+)\)

= 0.27 V - 0.38 V

= -0.11 V

E°cell = \(E(Ga_3^3+/2) - E(Sn_2^2+)\)

= 0.27 V - 0.38 V

= -0.11 V

Therefore, the cell potential for all four reactions is -0.11 V.  

Learn more about cell potential visit: brainly.com/question/1313684

#SPJ4

Filtration is a separation method used to separate out pure substances in mixtures comprised of particles some of which are large enough in size to be captured with a porous material. Particle size can vary considerably, given the type of mixture.

Evaporation is a technique used to separate out homogeneous mixtures that contain one or more dissolved salts. This process drives liquid components out of solid components. This process usually heats the mixture until the liquid is gone.

Distillation is an effective method of separating mixtures of two or more pure liquids. Distillation is a purification process that vaporizes, condenses, and separates the components of a liquid mixture.

Chromatography is the separation of a mixture by passing it in solution or suspension, or as a vapor through a medium in which the components move at different rates. Thin-layer chromatography is a special type of chromatography used for separating and identifying mixtures that are or can be colored especially pigments.

Learn more about Separation techniques here:-https://brainly.com/question/24645716

#SPJ9

A neutral atom of the element with 15 electrons is phosphorus with a ground state electron configuration of 1s2 2s2 2p6 3s2 3p3. It is classified as a nonmetal element in group 15. The atoms of this element are diamagnetic, as all electrons are paired up in their orbitals.

A neutral atom is an atom that has an equal number of protons and electrons. In the case of this certain element with 15 electrons, its ground state electron configuration would be 1s2 2s2 2p6 3s2 3p3.

This means that the first shell (n=1) has 2 electrons, the second shell (n=2) has 8 electrons, and the third shell (n=3) has 5 electrons.

Based on its position in the periodic table and the number of valence electrons it has, the element with this electron configuration is phosphorus. Phosphorus is a nonmetal element that belongs to group 15, also known as the nitrogen group.

To determine whether the atoms of this element are diamagnetic or paramagnetic, we need to look at its electron configuration. In this case, we can see that all the electrons are paired up in their respective orbitals, meaning there are no unpaired electrons.

This makes the element diamagnetic, which means it does not have a magnetic field of its own and will not be attracted to a magnetic field.

In summary, a neutral atom of the element with 15 electrons is phosphorus with a ground state electron configuration of 1s2 2s2 2p6 3s2 3p3. It is classified as a nonmetal element in group 15. The atoms of this element are diamagnetic, as all electrons are paired up in their orbitals.

To know more about neutral atom, visit:

https://brainly.com/question/29757010#

#SPJ11

Given data:H2O vapor content: 13 gramsH2O vapor capacity: 52 grams at 25 degrees Celsius 13 grams at 10∘C52 grams at 30∘CFormula used to find the dew point:$$\dfrac{13}{52}=\dfrac{(A*3\pi)/(ln100)}{(17.27-A)}$$$$\frac{1}{4}=\dfrac{(A*3\pi)/(ln100)}{(17.27-A)}$$

Where A is the constantDew Point:It is the temperature at which air becomes saturated with water vapor when the temperature drops to a point where dew, frost or ice forms. To solve this question, substitute the given data into the formula.$$13/52=\dfrac{(A*3\pi)/(ln100)}{(17.27-A)}$$$$13(17.27-A)=3\pi A(ln100)$$By simplifying the above expression, we get$$A^2-17.27A+64.78=0$$Using the quadratic formula, we get$$A=9.9,7.4$$

The dew point is 7.4 since it is less than 10°C.More than 100:The term "More than 100" has not been used in the question provided.

To know more about temperature  visit:

https://brainly.com/question/7510619

#SPJ11

Answer:

no, because the merry go round is moving at a constant speed, which means it isnt changing in speed or direction.

Explanation:

Answer:

GUYS I JUST TOOK IT SO HERE IS THE EXACT ANSWER!

Explanation:

Yes, the merry-go-round is accelerating. Acceleration is a change in speed, direction, or both. Even though the speed of the merry-go-round does not change, its direction constantly changes as it spins.

Answer:

4.81 * 10^24

Explanation:

we know that:

no. of atoms = moles * avogadro number

no. of moles = 8 * 6.022* 10^23

no. of moles = 4.81 * 10^24

Answer:

Fusion reactions can occur when two nuclei come together to form one atom. The reaction that happens in the sun fuses two Hydrogen atoms together to produce Helium. The energy can be calculated by the famous equation made by Einstein, E = mc2.

:)

Answer:

7.00

Explanation:

Pure Water is the only purely neutral substance on earth so it has a neutral pH of 7

The concentration of H3O+ ions in the solution of HCl is 3.72 x 10^(-2) M.

The pH of a solution is defined as the negative logarithm (base 10) of the hydronium ion concentration, or [H3O+].

Mathematically, we can express this relationship as:

pH = -log[H3O+]

Therefore, we can rearrange this equation to solve for [H3O+]:

[H3O+] = 10^(-pH)

Substituting the given pH of 1.510 into this equation, we get:

[H3O+] = 10^(-1.510)

[H3O+] = 3.72 x 10^(-2) M

Therefore, the concentration of H3O+ ions in the solution of HCl is 3.72 x 10^(-2) M.

Learn more about concentration,  here:

https://brainly.com/question/3045247

#SPJ11

The action of dissolving Epsom salts (magnesium sulfate) in water and observing the crystals that are left behind after the water evaporates is a physical change, not a chemical change.

A chemical change is a process that leads to the formation of new substances, whereas a physical change is a process that alters the form of a substance without creating new substances. In this case, the Epsom salts are not forming new substances when it dissolves in water, it is simply change its state from a solid to a solution. And when the water evaporates, the Epsom salts will change back to their original solid form. Evidence to support this claim can be found in the fact that the chemical composition of the Epsom salts remains the same before and after the dissolution process. Magnesium sulfate has the same chemical formula (MgSO4) before and after being dissolved in water, and also before and after the water evaporates. The chemical composition is unchanged and the substance is still magnesium sulfate.

Learn more about chemical change here:

https://brainly.com/question/11321843

#SPJ4

Absorption is the movement of breakdown products of food from the lumen of the small intestine into the blood or lymph.

The digestive system breaks down the food into their smaller components. The digestive system consists of the stomach, intestines, liver, pancreas, mouth, esophagus, etc. After food is broken down into smaller monomers, it is absorbed by blood and lymph. This process is called absorption. Most of the absorption occurs through the linings of the small intestines, but some of it occurs in the mouth (starch is absorbed here), the stomach (alcohol, some fats and proteins are absorbed here), and the large intestine (water, vitamins, and minerals). Thus, absorption is correct answer for this question.

To learn more about absorption, refer:

https://brainly.com/question/259823

#SPJ4

Complete question:

____Is the movement of breakdown products of food from the lumen of the small intestine into the blood or lymph?

a. Propulsion

b. Ingestion

c. Chemical digestion

d. Defecation

e. Absorption

The number of moles of air present in 1.35 L at 750 torr and 17.0°C is approximately 0.0865 mol.

The appropriate equation to use in determining the number of moles of air present in 1.35 L at 750 torr and 17.0°C is:N equals StartFraction P V over R T EndFraction.

The Ideal Gas Law is utilized to determine the number of moles of air present in 1.35 L at 750 torr and 17.0°C. When combined with the appropriate conditions, the Ideal Gas Law is used to calculate the pressure, volume, temperature, or number of moles of gas.

For example, the equation N = PV / RT can be used to calculate the number of moles of gas present in a given sample if you know its pressure, volume, and temperature.

We have:N = PV/RTN: number of moles

P: pressure, V: volume, R: gas constant, T: temperature

Convert temperature to Kelvin, which is required for all thermodynamic calculations:17°C + 273 = 290KNow we can compute the number of moles of air:PV = nRTn = PV / RTn = (750 torr) (1.35 L) / (62.36367 L·torr/(mol·K)) (290K) ≈ 0.0865 mol

Thus, the number of moles of air present in 1.35 L at 750 torr and 17.0°C is approximately 0.0865 mol.

To learn more about temperature visit;

https://brainly.com/question/7510619

#SPJ11

Answer: The answer is B. The pressure inside the tires increased.

Explanation:

The relationship between the pressure, volume, and temperature of a gas is described by the ideal gas law, which is usually written as:

\($$PV = nRT$$\)

where:

- \(\(P\)\) is the pressure,

- \(\(V\)\) is the volume,

- \(\(n\)\) is the number of moles of gas,

- \(\(R\)\) is the ideal gas constant, and

- \(\(T\)\) is the temperature (in Kelvin).

In this case, the volume \(\(V\)\) and the number of moles \(\(n\)\) of air in the tires stay the same. The temperature \(\(T\)\) is increasing. Therefore, for the equation to remain balanced, the pressure \(\(P\)\) must also increase.

So, the answer is B. The pressure inside the tires increased.

Answer:

Oxygen is relatively insoluble in water

Explanation:

Answer: Yes

Explanation:

Oxygen is relatively insoluble in water, its solubility being only 264 µM at 25 °C. That explains in part why you (and fish) require dedicated oxygen carriers in your blood to transfer sufficient oxygen around your body.

The enthalpy of reaction is -238.62 Kj/ mol.

What is enthalpy of reaction?

Enthalpy of reaction (also known as the heat of reaction) is the amount of heat released or absorbed during a chemical reaction. It is an important physical property of a reaction, and is a measure of the reaction’s ability to do work. It is related to the change in internal energy of a reaction and can be calculated using Hess’s law. Enthalpy of reaction can be used to calculate the temperature of the reaction, the rate of reaction, and the amount of energy released or absorbed in the reaction. It is also used to determine the equilibrium constants for a reaction, and can be used to predict the stability of a reaction. Enthalpy of reaction is an important concept in thermodynamics and can be used to study the energetics of a reaction.

The enthalpy per mole of reactant is expressed in units of kj/mol.

(0.434 g of Na) × (1 mole Na / 22.990g) = 0.0189 mole

ΔH= -4.510kj /0.0189 mole = - 238.62 Kj/ mol

ΔH is negative because energy is released by the system.

For more information about enthalpy please visit: https://brainly.com/question/29888663
#SPJ4

Answer:

At standard temperature and pressure (STP), two atoms of the element bind to form dioxygen, a colorless, odorless, tasteless diatomic gas with the formula O2. Oxygen is a member of the chalcogen group on the periodic table and is a highly reactive nonmetallic element.

Answer:

Oxygen is a colorless, odorless, tasteless gas. It changes from a gas to a liquid at a temperature of -182.96°C (-297.33°F). The liquid formed has a slightly bluish color to it. Liquid oxygen can then be solidified or frozen at a temperature of -218.4°C (-361.2°F).

Explanation:

When the carbonic acid sodium bicarbonate buffer pair buffers lactic acid, the following reaction occurs:$$\text{HCO}_3^- + \text{H}^+ \leftrightarrow \text{H}_2\text{CO}_3$$The carbonic acid/bicarbonate buffer system is one of the most important in human blood. When the pH of the blood decreases (becomes more acidic), the amount of bicarbonate ions in the blood decreases, and the concentration of hydrogen ions increases.

A buffer is a solution of a weak acid and its conjugate base that prevents changes in pH when small amounts of strong acid or base are added. Buffer systems protect organisms from pH changes by regulating and neutralizing acids and bases that enter or are produced by cells.

When the carbonic acid sodium bicarbonate buffer pair buffers lactic acid, the following reaction occurs:$$\text{HCO}_3^- + \text{H}^+ \leftrightarrow \text{H}_2\text{CO}_3$$The carbonic acid/bicarbonate buffer system is one of the most important in human blood. When the pH of the blood decreases (becomes more acidic), the amount of bicarbonate ions in the blood decreases, and the concentration of hydrogen ions increases. To balance the excess hydrogen ions, carbonic acid (H2CO3) is formed from carbon dioxide (CO2) and water (H2O). Carbonic acid then decomposes to form bicarbonate ions and hydrogen ions, and the pH of the blood is returned to normal. The bicarbonate ions act as a base, neutralizing the excess hydrogen ions that cause the blood to become more acidic. This is called the bicarbonate buffer system. Lactic acid is produced during intense exercise when the body doesn't get enough oxygen to meet its energy needs. The buildup of lactic acid in muscles can cause fatigue and muscle soreness. The carbonic acid/bicarbonate buffer system can also help to buffer the excess lactic acid produced during exercise, preventing the blood from becoming too acidic.

To know more about sodium bicarbonate visit :

brainly.com/question/8506770

#SPJ11