I need it ASAP thank you

The direction of electron flow from the anode and the cathode is the when the current is flow in the opposite direction.

An electrochemical cell have the a cathode and an anode. the anode one is the positively charged and the an anode one is negatively charge. so, the electron flow from the anode to the cathode that is the positively charged end to the negatively charged end and the current will flow in the opposite to direction.

The direction of the current is from the cathode to the anode. the electrochemical  cell is non spontaneous and is called as electrolytic cell.

The question is incomplete, I answer the question in general according to my knowledge.

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Since chlorine only has 17 electrons, the atoms 1+ and 2+ require argon & potassium, that have 18 and 19 electrons, respectively. We require the atoms S- & P-2, which have 16 & 15 electrons respectively, for 1 and 2.

When the number of protons within the nucleus is different from the amount of electrons around that nucleus, an electrical charge is created in the atom of matter. A negative charge is present in an atom if it contains more electrons than protons. A positive charge is present in an atom if there are more protons than electrons.

Ampere-second or Coulomb are the SI units for measuring charge.

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86,472.46 J

The heat required to melt ethanol can be calculated using the formula:

heat = mass × heat of fusion

After plugging in the values ​​it looks like this:

Heat = 199 g × 109.1 J/g

= 21489.9

In order to heat the molten ethanol to a higher temperature, the heat capacity of ethanol must also be considered. The heat capacity of ethanol is 2.44 J/g × degree Celsius. To bring the molten ethanol to a sufficient temperature, we need to know the desired final temperature and the initial temperature (the melting point of ethanol, -114.1 degrees Celsius). Let's say the desired final temperature is 25 degrees Celsius.

The heat required to raise the temperature of molten ethanol can be calculated using the formula:

heat = mass × heat capacity × (final temperature - initial temperature)

After plugging in the values ​​it looks like this:

Heat = 199 g × 2.44 J/g degrees Celsius × (25 degrees - (-114.1 degrees))

= 199 g × 2.44 J/g degrees Celsius × 139.1 degrees

= 64982.56 J

add 21489.9 J + 64982.56 J = 86,472.46 J

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The reaction occurs at constant pressure, - 385.89 kJ amount of heat is released during the reaction.

The heat released by any reaction will be calculated as:

ΔH = ΔH of products -  ΔH of reactants

Given chemical reaction is:

2CH₄ + 5F₂ → 2CF₄ + 2HF

From the stoichiometry of the reaction, it is clear that,

2 moles of CH₄ = react with 5 moles of F₂

1 moles of CH₄ = react with 5/2 moles of F₂

So, 0.610 moles of CH₄ = react with 0.610×5/2=1.525 moles of F₂

Given moles of F₂ = 0.760moles, which is less as compared to the calculated moles so for this reaction F₂ is the limiting reactant.

From the stoichiometry:

5 moles of F₂ = produce 2 moles of CF₄ & HF each

0.760 moles of F₂ = produce 2/5×0.760=0. 304moles of CF₄ & HF each

From the stoichiometry of the reaction, it is also clear that 0.. 304 moles of CF₄ & HF each require 0.176 moles of CH₄.

We know that the value of heat of formation of the below molecules is as:

CF₄ = -74.8kJ/mole

HF = -271.1 kJ/mole

CF₄ = -925.0 kJ/mole  

F₂ = 0

Now we put all these values on the above equation with their respective moles, and we get

ΔH = (0.176 x -271.1 kJ/mole + 0.176 x -925 kJ/mole) - (0.176 x -74.8 kJ/mole) = - 389.95 kJ

Hence, - 385.89 kJ amount of heat is released.

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Answer:

The ONLY compound that has polar bonds is CF4

Explanation:

Any elements or free atoms DO NOT have any polar bonds, they only have London Dispersion Forces, which is not considered a polar force.

Only Dipole-Dipole and Hydrogen Bonds are considered to make a molecule polar. CF4 has dipole-dipole bonds (In addition to London Dispersion Forces) Making it Polar.

Cl2, F2, H2 ONLY have London dispersion which means it is not polar

Hope this helps,

The strong acid and strong base has high rate constant of dissociation. The rate constant for weak acid and base for the dissociation is low, they do not easily dissociate in water. Therefore, when a base is made into an aqueous solution, it is called alkali.

Acid is a solution which releases H⁺ hydrogen ion when dissolved in water. Base releases hydroxide ion OH⁻ ion when dissolved in water.

pH is a measurement of amount of hydronium ion H₃O⁺ in a given sample. Strength of acidic nature is directly proportional to the concentration of hydronium ion. when a base is made into an aqueous solution, it is called alkali.

Therefore, when a base is made into an aqueous solution, it is called alkali.

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The Molar concentration for the H2SO4 titrated against base is 8.55M.

Molar concentration=MV=0.90 x 19=17.1

Titrated against 2 mol base so dividing the molar concentration with 2 and finally getting required result.

New molar concentration=17.1/2=8.55M

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Answer:

Your answer will be 34.5 g

Explanation:

The molar mass of aluminum (Al) is 26.98 g/mol. In the formula above, replace the values. This results in 34.5 g of aluminum (Al) being required.

The central atom in the iodite ion, IO21-, is surrounded by two bonding pairs and two unshared pairs of electrons.

The center atom in a molecular formula is often the atoms with the smallest subscript and the largest bonding potential. The lowest electronegative atom is normally the central atom when all the atoms typically make the same number of bonds. The main ion in K3[Fe(CN)6] is Fe3+. These central atoms & central ions serve as Lewis acids, or acceptors of a electron pair.

Here, the oxygen atom at the center has undergone hybridization. So there are 3 2p orbitals and a 2s orbital when we look at the creation of the water molecule. The 4 sp3 hybrid orbitals are produced by these together.

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Taking into account the reaction stoichiometry, a mass of 6.24 grams of Ba(OH)₂ are required to react with 12.2 grams of caesium phosphate.

In first place, the balanced reaction is:

3 Ba(OH)₂ + 2 Cs₃PO₄ → Ba₃(PO₄)₂ + 6 CsOH

By reaction stoichiometry (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of moles of each compound participate in the reaction:

The molar mass of the compounds is:

Then, by reaction stoichiometry, the following mass quantities of each compound participate in the reaction:

The following rule of three can be applied: If by reaction stoichiometry 987.4 grams of Cs₃PO₄ react with 504.9 grams of Ba(OH)₂, 12.2 grams of Cs₃PO₄ react with how much mass of Ba(OH)₂?

mass of Ba(OH)₂= (12.2 grams of Cs₃PO₄× 504.9 grams of Ba(OH)₂)÷ 987.4 grams of Cs₃PO₄

mass of Ba(OH)₂= 6.24 grams

Finally, a mass of 6.24 grams of Ba(OH)₂ are required.

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The forecast for California would be windy with rainy conditions.

What is pressure?

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In this reaction, CuSO₄₍s₎ + 2HI₍aq₎ are reactant . Copper sulphate present in solid state and HI is present in aqueous state. Therefore, option B is correct.

Copper sulfate is used in agriculture and non-agricultural settings as a fungicide, algaecide, root killer, and herbicide. It's also an antimicrobial and a molluscicide. Individual products containing copper sulfate have a wide range of applications.

Copper and sulfuric acid are the two main ingredients used to make copper sulphate, but simply adding copper to a diluted acidic solution will not promote the oxidation reaction.

When pure copper sulphate is kept in water, it begins to dissolve, and a small amount of heat energy is released during the process. Its color changes to blue as 5 molecules of water cling to it.

Thus, option B is correct.

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Answer:

reacrans

Explanation: you are correct lol

The isotopes of element X are  52X (90.00%, atomic mass: 52.04 amu),  4⁹X (8.00% abundant, atomic mass:  48.99 amu), 5ºX (2.00% abundant, atomic mass:  50.09 amu). X has average atomic mass of 151.12 amu.

Isotopes are atoms containing the same atomic mass but differing numbers of neutrons. They differ in mass, which affects their physical characteristics even if they have nearly identical chemical properties.

High-speed particles can be fired into an atom's nucleus to achieve this. The nucleus may either absorb the electron by becoming unstable and emit one when it is struck. In either scenario, the nucleus's particle count would change, resulting in the creation of an isotope.

Briefing:

To solve a problem like this, we can multiply mass of each isotope by the percentage abundance of that isotope

Add all the amu

52.04amu +  48.99 amu + 50.09 amu= 151.12 amu.

The average atomic mass of element X is  151.12 amu.

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Answer:

C. combustion reaction

combustion reaction is a type of reaction that involves the reaction of a compound with oxygen gas to release energy

Answer:

C. A combustion reaction

Explanation:

Every hydrocarbon has a property of combustion

Ethyne and Oxygen form Carbon Dioxide and Water.

Ethyne aka Acetylene

\quora

Answer: 0.101

Explanation:

Using the fact that molarity = (moles of solute)/(liters of solution), there are [tex](0.150)(35.5/1000)=0.005325[/tex] moles of barium hydroxide.

There are 2 moles of hydroxide ions per mole of barium hydroxide, meaning that there are [tex](0.005325)(2)=0.01065[/tex] moles of hydroxide ions.

To neutralize the solution, the number of moles of hydrogen ions must be equal to the number of moles of hydroxide ions.

Since there is 1 mole of hydrogen ions per mole of nitric acid, we need 0.01065 moles of nitric acid.

Substituting into the molarity formula yields that the concentration is [tex]\frac{0.01065}{0.105}=0.101[/tex] M.

The answer is true. The yeast engages in aerobic respiration in the presence of oxygen, converting carbohydrates (a source of sugar) into carbon dioxide and water.

The yeasts do fermentation in the absence of oxygen, turning carbohydrates into alcohol and carbon dioxide. Aerobic growth is substantially better for yeast cells. They cannot execute oxidative phosphorylation in anaerobic conditions, therefore they must manufacture all of their ATP through less effective glycolysis. When there is water, sugar, and no oxygen present, yeasts perform fermentation. The yeasts engage in anaerobic respiration, which implies their metabolic processes do not include the consumption of oxygen.

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If the pressure on a gas increased then its a volume will decrease because gas molecules will pushed closer together, the data support the hypothesis.

If the volume of the gas decreases, the molecules strike the walls more frequently, raising the pressure; conversely, if the volume grows, the distance the molecules must travel to strike the walls increases, and they strike the walls less frequently, lowering the pressure.

Gases have the ability to expand to fill almost any volume and can be compressed to minuscule fractions of their original capacity. When gas molecules are forced together to the point where they meet, the material becomes liquid. Cooling a gas and compressing it are two methods for turning it into a liquid.

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The complete question is as follows:

If the pressure on a gas is increased, then its volume will decrease because the gas molecules will be pushed closer together. Did the data support the hypothesis (above)? Justify your answer. Sample Justification: As weight was added to the top of a syringe, the volume of the air trapped in the syringe decreased. The weight and the surface area of the plunger were used to calculate pressure. As more weight was added, the pressure increased. The volume decreased in response. Did you mention that adding weight increased the pressure? Did you mention that volume decreased as the pressure increased?

pH of the solution is the negative logarithm of its H+ ion concentration. Nitric acid solution contains equal-molar H+ and nitrate ions. The pH of 0.380 M HNO₃ solution is 0.42.

pH of a solution is its measure of H+ ion concentration. It tells how much acidic or basic the solution is. The solution is neutral at a pH of 7 , acidic at pH below 7 and basic above 7.

Mathematically pH is the negative logarithm of H+ ion concentration. HNO₃ ionizes to equal H+ ions and NO₃ - ions. Thus, 0.380 M solution contains 0.380 M H+ ions.

pH = - log [H+]

     = - log (0.380 M)

     = 0.42

Therefore, the pH of the nitric acid solution is 0.42.

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Volume of NH3,at the same temperature and pressure, will be 3.8L



First permit's write the balanced equation for the response :
⇒
via analyzing the coefficients of the response we discover that the relationship among the compounds is
(I)which means that as an example with 1 mole of and with 3 moles of we are able to acquire 2 moles of

1 mole of gas at STP (wellknown Temperature and pressure) has a quantity of 22.4 L

The moles and the extent in liters vary immediately consequently we are able to work with the volume and the connection (I)

If we divide the volume of and we gain :(II)The range in (II) satisfies the connection (I) so we are able to write in phrases of liters that :

With of and of (three instances greater liters that ) we will produce of (two times greater liters that ) satisfying the connection (I)

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Yes there is so many difference between warm or cold an object feels and its tempreture.

An object is an abstract data by the  type with the addition of polymorphism and to the  inheritance. Rather than thd  structure of the  programs as code and data, an of the  object-oriented system from its  the  integrates the two using the concept of an "object". An object has state by  (data) and behavior (code).  Objects can correspond to things found in the real world.

Yes the sense of touch by the  human skin is differently

Because hot object can be the  sense burn whereas cold object sense cool and shiver and it is

The hot body radiated energy and temperature in environment and become normal

But cold object absorb to the  energy from the  environment and become normal.

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Since the number of atoms which are reacting are equal to the number of to the number of atoms in the product, this reaction demonstrates that matter is neither created nor destroyed in a chemical reaction.

Any system that is closed to all exchanges of matter and energy is subject to the law of conservation of matter, which is a general law of physics and chemistry. This law states that regardless of how the components rearrange themselves, the mass of an object or group of things remains constant over time.

A chemical reaction is a procedure that causes one group of chemical components to change chemically into another. Chemical reactions, which can frequently be described by a chemical equation, traditionally include changes that solely affect the locations of electrons in the formation and dissolution of chemical bonds between atoms, with no change to the nuclei.

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The Correct Option is :

One grey sphere, Four white spheres, and One red spheres.

For the pair of compounds CH 3 CH 2 CH 2 OH or CH 3 OH the one with the higher vapor pressure at a given temperature is?

Vapor pressure is always going to be inversely proportional to the boiling point. The low the boiling point, compound will have the higher vapor pressure.  

1. CH₃OH exhibits the  low boiling point in comparison to CH₃CH₂CH₂OH that exhibits the high boiling point. So, CH₃OH has high vapor pressure.

2. CH₃OH is polar and it  exhibits high boiling point because of hydrogen bonds, in comparison H₂CO exhibits low boiling point and has no hydrogen bonds. So, H₂CO has high vapor pressure.

3. CH₄ is non-polar solvent and exhibits less boiling point in comparison to that of CH₃Cl, which is polar and exhibits high boiling point. So, CH₄ has high vapor pressure.  

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Answer: a. n = 3, l = 2: The subshell in which electrons with these quantum numbers are found is the d subshell.

b. n = 1, l = 0: The subshell in which electrons with these quantum numbers are found is the s subshell.

c. n = 4, l = 3: The subshell in which electrons with these quantum numbers are found is the f subshell.

d. l = 3: It is not possible to determine the subshell in which electrons with this quantum number are found, as the principal quantum number "n" is not specified. The angular momentum quantum number "l" only specifies the shape of the orbital, not the energy level or subshell.

Explanation:

In virtually every stable compound, each of the atoms has achieved an electron configuration analogous to that of the noble elements.

Noble elements are those which have completely filled orbits, they are highly stable compounds, they do not react under normal conditions.

All the chemical compounds and elements have tendency to be stabilized by achieving the nearest inert electronic configuration.

They are classified as non-metals and they come under p-block elements. They have a complete octet; therefore, their electronic configuration is n[tex]s^{2}[/tex]n[tex]p^{6}[/tex],Their ionization enthalpy has a very high value, but xenon can react with highly electronegative atoms like oxygen and fluorine to form corresponding xenon compounds.

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In 1939, 740 migrant ship passengers were turned away from London city port, despite having immigration papers.

In 1939, the passenger ship MS St. Louis was carrying 740 Jewish refugees who had fled Nazi-occupied Europe and were seeking asylum in the United States. The ship had been turned away from Cuba, and when it arrived in Miami, the U.S. government also refused to allow the passengers to disembark.

The ship then headed to Canada and was turned away from Montreal. Finally, it arrived in the port of London, where it was also denied permission to land. The passengers were forced to return to Europe, and many of them later died in the Holocaust. The incident is a tragic example of the difficulties faced by Jewish refugees during World War II and the lack of political will to provide them with a safe haven.

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The important enzyme phosphopantetheinyl transferase, crucial for the manufacture of cellular lipids and virulence factors in Mycobacterium TB, has recently been verified as a target for the treatment of tuberculosis.

Amidinourea (AU), a recently discovered inhibitor, was investigated in terms of the structure-activity connections, with an emphasis on the biochemical potency, identification of active molecules' whole-cell on-target activity, and profiling of specific active congeners. The TB-causing Mycobacterium tuberculosis (Mtb) has a complicated cell wall that makes it difficult for potential antibiotic molecules to penetrate it. But there are lots of potential pharmacological targets in the biological processes that produce the cell wall. Mycolic acids are lipids that are typically present in the cell walls of mycobacteria. Delamanid and pretomanid, two TB medications developed since 2012, block the formation of mycolic acids, albeit it is unclear exactly how they work.

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According to VSEPR theory , bond angles in organic compounds are generally close to 109°, 120° or 180°.

Hybridization is defined as the mixing of two atomic orbitals which give rise to a new hybridized molecular orbital.

The hybrid orbitals so formed are different in energies and shapes. Equal energy atomic orbitals take part in hybridization. Since, valence bond theory failed to correctly predict the molecular structure, hybridization helps to understand the concept of bond formation, bond energies and bond lengths.

The shape of a molecule can be predicted from the electron pairs that surround the central atom by using Valence Shell Electron Pair repulsion (VSEPR) theory. This theory is based on the assumption that for a molecule to take a shape, its electronic repulsion should be minimized. That is why, according to experimental findings the angles between atoms of organic compounds are generally close to 109°, 120° or 180°.

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The wavelength of light that is absorbed falls between 490 and 530. On the visible color spectrum, green lies between cyan and yellow. Light with a prominent wavelength of 495–570 nm is used to evoke it.

The color wheel has 12 primary colors. These colors are red, orange, yellow, spring green, chartreuse green, blue, violet, magenta, and rose on the RGB color wheel. There are primary, secondary, and tertiary hues on the color wheel.

The color wheel, also known as a color circle, is a circular collection of hues arranged according to how chromatically similar they are to one another.

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According to Avogadro's law, equal volumes of various gases each contain an equal number of molecules at the same temperature and pressure. Under the presumption of an ideal (perfect) gas, this empirical relation can be deduced from the kinetic theory of gases.

Avogadro's number, or the Avogadro constant, is the precise number of molecules in one gram-mole of a substance, defined as the molecular weight in grams, which is equal to 6.02214076 1023. As an illustration, since oxygen has a molecular weight of 32.00, one gram-mole of oxygen weighs 32.00 grams and contains 6.02214076 1023 molecules.

According to Avogadro's rule, the volume occupied by one gram-mole of gas is approximately 22.4 litres (0.791 cubic foot) at standard temperature and pressure (0 °C, 1 atmosphere).

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