How is liquid nitrogen made, and how does it work? What are the effects if it comes into contact with human skin, and what are the effects if it comes into contact with a nonliving object? How about an animal? What type of substance is it exactly?

The amount of energy required to remove an electron from an isolated atom or molecule is Ionisation energy.

Also  called as ionization potential, ionization energy is characterized as the aggregate sum of energy expected to free an electron, which is spinning in the peripheral shell of any molecule. On the other hand, scientific experts likewise characterize it as the complete energy expected to free one mole of electrons, from one mole of a specific iota.

In material science, we favor utilizing electron volts (eV) per iota, as a unit for ionization potential, while in science, it's deliberate with regards to kJ/mol (Kilojoules per mole). For instance, the ionization energy of hydrogen is 13.5984 eV. The lower the energy, higher is the inclination of a molecule to turn into a decreasing specialist and more receptive it is. Then again, higher the ionization energy, higher is the propensity to turn into an oxidizing specialist and less receptive it is.

To know more about Ionsiation energy,visit here:

https://brainly.com/question/20658080

#SPJ4

(Complete question) is:

the amount of energy required to remove an electron from an isolated atom or molecule is ______.

The hydrogen-ion concentration ([H+]) for the given aqueous solution is 1 x 10^(-3) mol/L. This solution is acidic due to the presence of a higher concentration of hydrogen ions.

In an aqueous solution, the product of hydrogen-ion concentration \(([H^+])\) and hydroxide-ion concentration\(([OH^-])\) is always constant and equal to the ion product of water (Kw), which is approximately\(1 * 10^(^-^1^4^)\) at room temperature. Mathematically, it can be expressed as\([H^+][OH^-]\) = Kw.

Given that \(([OH^-])\) is \(1 * 10^(^-^1^1^)\)mol/L, we can substitute this value into the equation and solve for\(([H^+])\)

\([H^+][1 * 10^(^-^1^1^)] = 1 * 10^(^-^1^4^)\)

\([H^+] = (1 * 10^(^-^1^4^))/(1 * 10^(^-^1^1^))\)

\([H^+] = 1 * 10^(^-^3^)\) mol/L

The concentration of hydrogen ions ([H+]) in the solution is 1 x 10^(-3) mol/L. Since the concentration of hydrogen ions is higher than the concentration of hydroxide ions, the solution is considered acidic.

Learn more about Acidic solutions here:

https://brainly.com/question/29639696

#SPJ11

Answer:

b

Explanation:

the angular distance of a place east or west of the meridian at Greenwich, England, or west of the standard meridian of a celestial object, usually expressed in degrees and minutes

Mutualism is a type of symbiotic relationship where all species involved benefit from their interactions.

What is Symbiotic relationship?

The core of a symbiotic connection is the concept of aiding someone in exchange for benefit in return.

Symbiosis is the term used to describe tight relationships between two or more species. Because the two species involved in a symbiotic relationship coexist, it differs from typical interactions between species. Because this contact helps both species, symbiotic partnerships are prevalent among many creatures. However, certain symbioses are harmful to one or both of the species and are not helpful.

Mutualism happens when both species gain from a relationship. There are numerous mutualistic interactions because they are advantageous to both species involved.

Learn more about Symbiotic relationship from given link

https://brainly.com/question/20731481

#SPJ1

Answer:

To balance a chemical equation, enter an equation of a chemical reaction and press the Balance button. The balanced equation will appear above. Use uppercase for the first character in the element and lowercase for the second character. Examples: Fe, Au, Co, Br, C, O, N, F. Ionic charges are not yet supported and will be ignored.

Explanation:

Answer:

A

Explanation:

The answer is A

this also need to be 20 characters

Answer:

A. water freezes

Explanation:

i wanted to answer sorry

Activation polarization is occuring due to the evolution or deposition of some gases taking place in a redox reaction. Concentration polarization occurs between two electrodes when uneven distribution of ions occurs in the boundary.

Polarization is the process of charge separation between two species or the potential difference occurred due to the concentration gradient.

The two types of polarization occuring are activation polarization and concentration polarization. In activation polarization there occurs difference by the accumulation of gases.

For example the evolution of gases from the hydrogen electrode immersed in an electrolyte causes a polarization between the two electrodes.

In concentration polarization, there will be a concentration gradient of ions in the boundary of two electrodes occured due the electroanalytical reaction.

To find more about electrodes , refer the link below:

https://brainly.com/question/17060277

#SPJ1

The probability that a person has tuberculosis given a negative DNA indication is approximately 0.0005 or 0.05%.

To find the probability that a person has tuberculosis given a negative DNA indication, we can use Bayes' theorem. Bayes' theorem states that the probability of an event A given event B can be calculated using the formula: P(A|B) = (P(B|A) * P(A)) / P(B)

In this case, we want to find P(T|N), the probability of having tuberculosis given a negative DNA indication.

We are given the following information:

P(T) = Probability of having tuberculosis = 0.01 (given)

P(N) = Probability of a negative DNA indication (to be calculated)

To calculate P(N), we can use the complement rule:

P(N) = 1 - P(T) = 1 - 0.01 = 0.99

Now, we can plug the values into Bayes' theorem:

P(T|N) = (P(N|T) * P(T)) / P(N)

P(T|N) = (0.05 * 0.01) / 0.99

P(T|N) ≈ 0.0005

To learn more about certain tuberculosis

https://brainly.com/question/8794304

#SPJ11

Answer:

D aka synthesis

Explanation:

Got question and got it right :) have a good rest of your day

3.60 × \(10^{23}\) molecules of sucrose in 205 g of \(C_{12}H_{22}O_{11}\)

To determine the number of molecules of sucrose (\(C_{12}H_{22}O_{11}\)) in 205 g, we need to use the concept of moles and Avogadro's number.

First, we calculate the number of moles of sucrose using the formula:

moles = mass / molar mass

Given that the molar mass of sucrose (\(C_{12}H_{22}O_{11}\)) is 342.34 g/mol, we can substitute the values into the equation:

moles = 205 g / 342.34 g/mol

Calculating this expression, we find that the number of moles of sucrose is approximately 0.599 mol. Next, we use Avogadro's number, which states that one mole of any substance contains 6.022 × \(10^{23}\) molecules.

Therefore, to calculate the number of molecules, we multiply the number of moles by Avogadro's number:

number of molecules = moles × Avogadro's number

= 0.599 mol × 6.022 × \(10^{23}\) molecules/mol

≈ 3.60 × \(10^{23}\) molecules

Hence, there are approximately 3.60 × \(10^{23}\) molecules of sucrose in 205 g of \(C_{12}H_{22}O_{11}\)

Know more about Avogadro's number here:

https://brainly.com/question/1513182

#SPJ8

Answer:

\(\boxed {\boxed {\sf 81.4 \ g\ KOH}}\)

Explanation:

We are asked to convert 1.45 moles of potassium hydroxide (KOH)  to grams.

The molar mass is the mass in grams of 1 mole of a substance. The values are found on the Periodic Table. They are the same as the atomic masses but the units are grams per mole (g/mol) instead of atomic mass units (amu).

We have the compound KOH. Look up the molar masses of the individual elements.

The formula for the compound has no subscripts, so there is 1 mole of each element in 1 mole of the compound. We can simply add the molar masses.

Based on the molar mass, there are 56.105 grams of KOH in 1 mole. Create a ratio using this information.

\(\frac {56.105 \ g\ KOH}{ 1 \ mol \ KOH}\)

We are converting 1.45 moles of KOH to grams, so we multiply by this value.

\(1.45 \ mol \ KOH *\frac {56.105 \ g\ KOH}{ 1 \ mol \ KOH}\)

The units of moles of KOH cancel.

\(1.45\ *\frac {56.105 \ g\ KOH}{ 1 }\)

\(81.35225 \ g\ KOH\)

The original measurement of moles has 3 significant figures, so our answer must have the same.

For the number we calculated, that is the tenths place. The 5 in the hundredths place (81.35225) tells us to round the 3 up to a 4.

\(81.4 \ g\ KOH\)

Approximately 81.4 grams of potassium hydroxide are represented by 1.45 moles.

Answer:

D

Explanation:

Hope this helped!

Answer:

0.3M

Explanation:

Find the amount concentration of the anion in a 0.100 mol/L solution of Al(CIO3)3.

FOR EVERY MOLE OF Al(CIO3)3., THERE ARE 3 MOLES OF CIO3.

SO IN A 0.00m SOLUTION, THE CONCENTRATION OF THE ANION

ClO3 IS 3X0.1M = 0.3M

.

Among the given options, \(O_2\) does not act as a secondary messenger. Secondary messengers are small molecules that relay signals within cells, often involved in signal transduction pathways. The correct answer is (B).

Nitric oxide (NO) (option A), carbon monoxide (CO) (option C), and hydrogen sulfide (\(H_2S\)) (option D) are all known to function as secondary messengers. They play important roles in various cellular processes, including cell signaling, regulation of blood pressure, and modulation of neurotransmission. However, molecular oxygen (\(O_2\)) primarily serves as a critical component for respiration and is not typically involved in secondary messenger functions within cells. Hence the correct answer is (B).

To know more about neurotransmission, here

brainly.com/question/30336628

#SPJ4

Answer:

231.735 g/mol

Explanation:

When sulfur dioxide (SO2) and nitrogen oxides (NOX) are released into the atmosphere and carried by wind and air currents, acid rain is the volcanoes.

Thus, Nitric and sulfuric acids are created when the SO2 and NOX react with water, oxygen, and other substances. Then, before hitting the ground, they combine with water and other substances.

The majority of the SO2 and NOX that contribute to acid rain originates from burning fossil fuels, however a tiny amount comes from natural sources like volcanoes.  

Thus, When sulfur dioxide (SO2) and nitrogen oxides (NOX) are released into the atmosphere and carried by wind and air currents, acid rain is the volcanoes.

Learn more about sulphur dioxide, refer to the link:

https://brainly.com/question/31142164

#SPJ1

According to valence bond theory, ethyne (acetylene, C₂H₂) consists of a total of consisting of two carbon atoms and two hydrogen atoms.

According to the valence bond theory, ethyne is composed of two single covalent bonds. A single covalent bond is a type of chemical bond where two atoms share a pair of electrons. The structure of ethyne consists of each carbon atom covalently bonded to a single hydrogen atom and the two carbon atoms bound to each other by a second single covalent bond.

This structure gives ethyne a chemical formula of C₂H₂, with a bond angle of 180°. The two electrons involved in the single covalent bond between the two carbon atoms in ethyne are shared equally between them.

These shared electrons are referred to as a pi bond. The pi bond is a bit weaker than the single bond and is more susceptible to chemical reactions. It is this weaker pi bond which makes ethyne highly reactive, resulting in the molecule participating in a number of chemical reactions when exposed to certain conditions.

know more about valence bond here

https://brainly.com/question/29418743#

#SPJ11

Frozen RBCs prepared using glycerol  (40%) technology can be stored for up to 10 years at -65 °C or lower.

Frozen Red Blood Cell:

These are red blood cells that have been biochemically modified to restore or improve their oxygen transport function prior to freezing in 40% glycerol (w/v). These frozen red blood cells were stored in a mechanical freezer at -60 °C for at least 14 years with satisfactory results.

Of the options listed, the correct temperature for storing red blood cells produced by the high-glycerol preservation method is below 0°C. At this temperature, the glycerol solution slows cellular metabolism, maintaining the viability and function of red blood cells for a long period of time. Red blood cells stored below 65°C can damage the cells and make them unsuitable for transfusion. Similarly, storage below 20 °C may allow for short-term preservation, but is not suitable for long-term storage as RBC viability can be greatly reduced. Storage of RBCs at 10 °C or lower may allow for short-term preservation, but may not be suitable for long-term storage as low temperatures may freeze the cells and cause irreversible damage.

Erythrocytes can be frozen in a glycerol solution and stored for several years. Thawed red blood cells must be freed of glycerol, but regenerated cells have normal survival rates in humans. Freezing has been used to store red blood cells of rare phenotypes for over 40 years. These attempts have largely been abandoned due to freezing, storage and handling costs, better management of larger and longer-lived RBC stocks, and concerns about the safety and waste of stored RBCs that do not pass state-of-the-art tests. . It is related to the short shelf life of thawed red blood cells.

A new automated system for handling frozen red blood cells has the potential to extend the shelf life of frozen red blood cells by up to two weeks, but without significantly impacting the cost or waste associated with using frozen red blood cells. Frozen red blood cells have little impact on blood supply logistics.

Learn more about  RBC:

https://brainly.com/question/30319805

#SPJ4

Answer:

92

Explanation:

A LOAEL is defined as the lowest dose that demonstrates a significant increase in an observable adverse effect. The term LOAEL stands for "Lowest Observed Adverse Effect Level."

When testing chemicals and other substances for toxicity, the goal is to determine the concentration or dose at which adverse effects begin to appear. The LOAEL is the lowest dose at which an adverse effect is observed. This value can be used to establish a safe level of exposure to a substance.
To determine the LOAEL, a series of tests are conducted in which different doses of the substance being tested are administered to test animals. The animals are observed for any adverse effects, such as changes in behavior, weight loss, or organ damage. The lowest dose at which an adverse effect is observed is the LOAEL.
It is important to note that the LOAEL is a relative measure of toxicity. It only provides information on the dose at which an adverse effect is first observed and not on the severity of the effect. In addition, the LOAEL may vary depending on the species tested and other factors.
In summary, the LOAEL is the lowest dose at which an observable adverse effect is detected. This value is used to establish a safe level of exposure to a substance.

To know more about element visit:

https://brainly.com/question/33440356

#SPJ11

The concentrations of all species at equilibrium, the concentrations will be approximately [N2] = 0.597 M, [O2] = 0.597 M, and [NO] = 0.426 M.

To find the concentrations of all species at equilibrium, we can set up an ICE (Initial, Change, Equilibrium) table and use the equilibrium constant (Kc) to solve for the concentrations. Initial concentrations: [N2] = 0.81 M [O2] = 0.81 M [NO] = 0 M

Change in concentrations: [N2] = -x [O2] = -x [NO] = +2x Equilibrium concentrations: [N2] = 0.81 - x [O2] = 0.81 - x [NO] = 2x

Now, use the Kc value (0.1) and plug in the equilibrium concentrations: Kc = [NO]^2 / ([N2] * [O2]) 0.1 = (2x)^2 / ((0.81 - x) * (0.81 - x)) Solving for x: x ≈ 0.213

Now, find the equilibrium concentrations: [N2] = 0.81 - 0.213 ≈ 0.597 M [O2] = 0.81 - 0.213 ≈ 0.597 M [NO] = 2 * 0.213 ≈ 0.426 M

Visit here to learn more about Concentrations:

brainly.com/question/17206790

#SPJ11

Nowadays, it is very important to reduce one's carbon "footprint" (how much carbon we produce in our daily lifestyles). By limiting the use of fossil fuels and instead turning to renewable sources of energy, we can significantly reduce our carbon emissions and mitigate the impacts of climate change.

One way to reduce our carbon footprint is by transitioning to renewable energy sources such as solar, wind, and hydropower. These sources of energy produce minimal greenhouse gas emissions compared to fossil fuels like coal, oil, and natural gas. Installing solar panels on rooftops, utilizing wind turbines, and supporting hydroelectric power can help generate clean and sustainable energy.

Another important aspect is adopting energy-efficient practices and technologies. This includes using energy-efficient appliances, LED lighting, and improving insulation in buildings to reduce energy consumption. Conserving energy in transportation by opting for public transportation, carpooling, biking, or walking can also make a significant difference.

Additionally, reducing waste and promoting recycling and composting can help minimize greenhouse gas emissions. Waste decomposition in landfills produces methane, a potent greenhouse gas. By reducing, reusing, and recycling materials, we can lower our carbon emissions and conserve resources.

Furthermore, making conscious choices in our daily lives can contribute to reducing our carbon footprint. This includes minimizing water usage, eating a plant-based diet or reducing meat consumption, and supporting sustainable and local products.

To know more about sustainable energy

https://brainly.com/question/21498934

#SPJ11

The molecular formula of the compound, given the data from the question is C₁₄H₂₄O₂

The following data were obtained from the question:

The molecular formula of the compound can be obtained as follow:

Molecular formula = empirical × n = mass number

[C₇H₁₂O]n = 224

[(7×12) + (12×1) + 16]n = 224

[84 + 12 + 16]n = 224

112n = 224

Divide both side by 112

n = 224 / 112

n = 2

Molecular formula = [C₇H₁₂O]n

Molecular formula = [C₇H₁₂O]₂

Molecular formula = C₁₄H₂₄O₂

Thus, the molecular formula of the compound is C₁₄H₂₄O₂

Learn more about molecular formula:

https://brainly.com/question/14797457

#SPJ1

The correct answer is a. Garbage reduction involves the process of breaking down and disposing of waste materials in a manner that is environmentally sustainable.

During this process, fats and oils are separated from organic waste materials and can be used in the manufacturing of soaps, glycerines, and cosmetics. This process not only helps in reducing the amount of waste that ends up in landfills but also provides a valuable resource for the manufacturing industry. However, it is important to note that the use of such materials in the manufacturing industry should be done in a manner that is safe and sustainable. Additionally, while garbage reduction can provide valuable resources, it is still important to focus on reducing waste at the source and promoting sustainable practices such as composting and reducing the use of single-use plastics. Fertilizers, on the other hand, are typically manufactured from synthetic or organic materials and are used to provide essential nutrients to plants. They are not produced from fats and oils obtained from garbage reduction.

learn more about Garbage here

https://brainly.com/question/31564563

#SPJ11

All statements given in the question are incorrect except for 1 statement. The correct statement is:1 s = 10^3 ms.

In the question, we have been provided with 5 statements. We are asked to select all the correct statements from those 5 statements. Given below are for each statement:1 g = 10^3 mg:This is incorrect. 1 g is equal to 1000 mg.10^-3 g = 10^12 ng:This is incorrect. 10^-3 g is equal to 1 mg.1 km = 10^5 mm:This is incorrect. 1 km is equal to 1,000,000 mm.1 s = 10^6 μs:This is incorrect. 1 s is equal to 1,000,000 μs.1 s = 10^3 ms:This is correct. 1 s is equal to 1000 ms.Therefore, the main answer to this question is that only 1 statement is correct, which is:1 s = 10^3 ms.

Metric units are based on the power of ten. The base units of the International System of Units (SI) are the meter, kilogram, second, kelvin, ampere, mole, and candela. All other metric units can be derived from these basic units.The first unit in each conversion is in grams, seconds, or kilometers. The metric units for millimeters, microseconds, and nanograms are derived from these basic units. One gram is equal to 1000 milligrams (mg), 1 second is equal to 1000 milliseconds (ms), and 1 kilometer is equal to 1000000 millimeters (mm). 10^-3 g is equal to 1 milligram (mg), 10^6 μs is equal to 1 second (s), and 10^12 ng is equal to 1 gram (g).

To know more about except visit:

https://brainly.com/question/14400269

#SPJ11

Answer:

the correct answer is

Empirical evidence is the information received by means of the senses, particularly by observation and documentation of patterns and behavior through experimentation. The term comes from the Greek word for experience,

Explanation:

hope this helps you!!

A process in which a covalent or the ionic bond is broken or it formed is generally called a chemical reaction.

A chemical reaction is a process in which the bond break and the formation of the bond take place. In a chemical reaction two more more species called as the reactant will react and form the new substance called as the product. The chemical is the process in the chemical transformation takes place. The examples of the chemical reaction is as follows :

CH₄   +  2O₂   ----->  CO₂   +  2H₂O

Thus, in a chemical reaction the covalent bond and the ionic bond broke or it formed.

To learn more about bond here

https://brainly.com/question/30359258

#spj4