a conducting loop of wire is placed in a magnetic field that is normal to the plane of the loop. which one of the following actions will not result in an induced current in the loop?

The balanced chemical reaction for the given chemical equation is given by; 3Ba3N2 + 6H2O → 6Ba(OH)2 + 2NH3. Therefore, the balanced values for w, x, y and z are 3, 6, 6, and 2, respectively.

The balanced chemical reaction for the given chemical equation can be obtained by following the below steps;

Count the number of atoms of each element on both sides of the chemical equation

Find the coefficients to balance the number of atoms on both sides of the chemical equation

Check the balance of the chemical equation

Write down the balanced chemical equation by putting coefficients to the molecules. The balanced chemical reaction is; 3Ba3N2 + 6H2O → 6Ba(OH)2 + 2NH3. Therefore, the balanced values for w, x, y and z are 3, 6, 6, and 2, respectively.

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Answer:

3... uhm I'm not sure it could 2

Answer:

Moving blood through your body

Explanation:

Thats the job of vascular system IE heart arteries and veins.

The isoelectronic pairs are I, II, and V. Therefore, the correct answer is c. only I, II.

To determine if two species are isoelectronic, they must have the same number of electrons. Let's examine each pair:

I. Mn²⁺/Fe³⁺
Mn²⁺: Mn has 25 electrons, and Mn²⁺ has 23 electrons (lost 2).
Fe³⁺: Fe has 26 electrons, and Fe³⁺ has 23 electrons (lost 3).
This pair is isoelectronic.

II. Ca/Ti²⁺
Ca: Ca has 20 electrons.
Ti²⁺: Ti has 22 electrons, and Ti²⁺ has 20 electrons (lost 2).
This pair is isoelectronic.

III. Cl⁻/Br⁻
Cl⁻: Cl has 17 electrons, and Cl⁻ has 18 electrons (gained 1).
Br⁻: Br has 35 electrons, and Br⁻ has 36 electrons (gained 1).
This pair is not isoelectronic.

IV. Zn²⁺/Cd²⁺
Zn²⁺: Zn has 30 electrons, and Zn²⁺ has 28 electrons (lost 2).
Cd²⁺: Cd has 48 electrons, and Cd²⁺ has 46 electrons (lost 2).
This pair is not isoelectronic.

V. Cu⁺/Zn²⁺
Cu⁺: Cu has 29 electrons, and Cu⁺ has 28 electrons (lost 1).
Zn²⁺: Zn has 30 electrons, and Zn²⁺ has 28 electrons (lost 2).
This pair is isoelectronic.
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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.

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Answer:

Chlorine is in group 7A, so it has 7 valence electrons

The Lewis structure for the molecule NCl²⁻ with -2 charge is attached in the image below.

Lewis structures are also called as electron dot structures and can be drawn if the molecular formula of a compound is known. It provides information regarding the nature of bond and the position of atoms .

They are also capable of exhibiting the lone pair if any present in a molecule or compound.Lewis defined a base to be an electron pair donor and an acid to be an electron pair acceptor.

They are capable of reflecting electronic structure of elements and even the pairing of electrons . In the diagram, each dot represents an electron while a pair of dots represent a bond between the atoms.It helps in understanding the  bonding between the two atoms.

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Answer: Option (A) is the correct answer.

Explanation:

An atom who has seven valence electrons in its ground state will have the following electronic configuration in its sub shells as 2, 7.

Thus, there will be in total 9 electrons and it is known that fluorine has atomic number 9.

Whereas sodium has 2, 8, 1 electrons in its sub-shell.

Calcium has 2, 8, 8, 2 electrons in its sub-shell and oxygen has 2, 6 electrons in its sub-shell.

Thus, we can conclude that out of the given options, fluorine is the element whose atom in the ground state has seven valence electrons.

Answer:

Three Oxygen atoms gains two electrons each ( total of six) from two Al atoms, each Al atom loses three electrons (total of six) to three oxygen atom , in this process each Al atom becomes Al3+ ion and Oxygen atom after gaining two electrons becomes O2− ion

Explanation:

Three Oxygen atoms gains two electrons each ( total of six) from two Al atoms, each Al atom loses three electrons (total of six) to three oxygen atom , in this process each Al atom becomes Al3+ ion and Oxygen atom after gaining two electrons becomes O2− ion

To solve this problem, we need to know the value of the acid dissociation constant (Ka) for chlorobutanoic acid. According to the Aleks data resource, the Ka value for this acid is 1.4 x 10^-3.

The equation for the dissociation of chlorobutanoic acid is:

ClCH2CH2CH2COOH + H2O ↔ ClCH2CH2CH2COO- + H3O+

The percentage of chlorobutanoic acid that is dissociated can be calculated using the following formula:

% dissociation = [H3O+] / [HA] x 100

where [H3O+] is the concentration of hydronium ions, [HA] is the initial concentration of chlorobutanoic acid.

Assuming the initial concentration of chlorobutanoic acid is 1.0 M (this value was not given in the question, so it is an assumption), we can use the Ka value to calculate the concentration of hydronium ions:

Ka = [H3O+] [A-] / [HA]

1.4 x 10^-3 = [H3O+] [ClCH2CH2CH2COO-] / [ClCH2CH2CH2COOH]

Assuming that x is the concentration of hydronium ions and the conjugate base (ClCH2CH2CH2COO-) formed from the dissociation of chlorobutanoic acid, we can set up the following ICE table:

Initial: 1.0 M 0 M 0 M

Change: -x +x +x

Equilibrium: 1.0 - x x x

Substituting these values into the Ka expression, we get:

1.4 x 10^-3 = x^2 / (1.0 - x)

Solving for x using the quadratic formula, we get:

x = 3.7 x 10^-2 M

Therefore, the percentage of chlorobutanoic acid that is dissociated is:

% dissociation = [H3O+] / [HA] x 100 = (3.7 x 10^-2 / 1.0) x 100 = 3.7 %

Rounding to significant digits, we get a percentage dissociation of 3.7%.

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The temperature 750 K in Celsius will be 477 °C whereas, in Fahrenheit scales, It will be 8907 °F.

A conversion factor is a number used to change one set of units to another, by multiplying or dividing. When a conversion is necessary, the appropriate conversion factor to an equal value must be used.

There are three temperature scales in use today, Fahrenheit, Celsius and Kelvin. Fahrenheit temperature scale is a scale based on 32 for the freezing point of water and 212 for the boiling point of water, the interval between the two being divided into 180 parts.

Scale of temperature is a methodology of calibrating the physical quantity temperature in metrology.

Empirical scales measure temperature in relation to convenient and stable parameters, such as the freezing and boiling point of water

Therefore, The temperature 750 K in Celsius will be 477 °C whereas, in Fahrenheit scales, It will be 890 °F.

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Answer:

The half-life of Th-232 is 1.4 ∙ 10¹⁰ years.

Answer:

V2= 531.4 ml

Explanation:

T1= 273+45 °C= 318 Kelvin

T2= 273+65 °C= 338 Kelvin

V1= 500ml *( 0.001L/1ml)= 0.5 Liters

V2= \(\frac{V1 * T2}{T1}\)= \(\frac{0.5 L * 338K}{318K}\) = 0.5314465409 Liters* (1 ml/0.001 L)= 531.4 ml

The mass number of an atom of potassium that has 20 neutrons is option C. 39

Mass number-

Mass number is the total number of protons and neutrons in the nucleus of an atom is called the mass number. It is represented by the symbol A. In other words, mass number refers to the sum of the number of protons and neutrons in the nucleus of an atom.

Atom-

Atoms are tiny particles that make up everything in the world. Everything in the world is made up of tiny particles known as atoms. An atom is the basic unit of matter. The term "atom" comes from the Greek word atomos, which means indivisible.

The basic building blocks of all matter are atoms, which are made up of three types of particles: protons, neutrons, and electrons.

In a neutral atom, the number of electrons is equal to the number of protons, thus the overall charge on the atom is zero. However, the mass number of the atom is equal to the sum of the number of protons and neutrons.

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Benzene would be a better choice than ethanol to dissolve phosphorous pentachloride. Ethanol would be a better choice than benzene to dissolve cesium fluoride, tin(IV) iodide, ammonium chloride, and fructose.

Ethanol and benzene are two commonly used solvents with different properties and applications. Ethanol, also known as ethyl alcohol, is a clear, colorless liquid with a mild, pleasant odor. It is a polar solvent, meaning that it has a partial positive charge on the hydrogen atoms and a partial negative charge on the oxygen atom, making it an effective solvent for polar substances such as sugars, proteins, and some organic compounds. Benzene, on the other hand, is a colorless liquid with a sweet, pleasant odor. It is a nonpolar solvent, meaning that it has no significant charge separation between its atoms.

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Answer:

A I think

Explanation:

im not sure so do with that what you will

Answer:

pH is an index of how many protons, or hydrogen ions (H+) are dissolved and free in a solution. The pH scale goes from 0 to 14. A fluid with a pH of 7 is neutral. Below 7, it is acidic; above 7, it is alkaline.

The more below or above 7 a solution is, the more acidic or alkaline it is. The scale is not linear—a drop from pH 8.2 to 8.1 indicates a 30 percent increase in acidity, or concentration of hydrogen ions; a drop from 8.1 to 7.9 indicates a 150 percent increase in acidity. Bottom line: Small-sounding changes in ocean pH are actually quite large and definitely in the direction of becoming less alkaline, which is the same as becoming more acidic.

If you think about it, we use descriptive words like this all the time. A person who stands 5’5” tall and weighs 300 pounds isn’t thin. If he loses 100 pounds, he still won’t be thin, but he will be thinner than he was before he went on the diet. (And we are more likely to comment that he’s looking trimmer than to say he’s not as fat as he used to be.)

The mass of the 25,000 molecules of Nitrogen gas is found to be 0.0000017 g (1.7 x 10⁻⁶ g).

We must use the molar mass of nitrogen and the Avogadro's number to get the mass of 25,000 molecules of nitrogen gas.

Nitrogen (N₂) has a molar mass of 28 g/mol.

The number of particles in one mole of any substance determined by Avogadro is 6.02 x 10²³.

One nitrogen gas molecule's mass can be determined as follows:

Nitrogen's (N₂) molecular weight is 28 g/mol.

Nitrogen gas molecules total 25,000.

Nitrogen gas moles equal (25,000 molecules) / (6.02 x 10²³ molecules/mol)

(Num. of moles) x = mass of nitrogen gas (molar mass)

[(25,000 molecules) / (6.02 x 10²³ molecules/mol)] is a formula for the mass of nitrogen gas. x (28 g/mol)

Nitrogen gas mass = 0.00000117 g

Therefore, 25,000 nitrogen gas molecules have a mass of about 0.00000117 g.

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Answer:

Since 1982, STP is defined as a temperature of 273.15 K (0 °C, 32 °F) and an absolute pressure of exactly 105 Pa (100 kPa, 1 bar).

Explanation:

I hope I helped

Answer:

Explanation: The best-supported theory of our universe's origin centers on an event known as the big bang. This theory was born of the observation that other galaxies are moving away from our own at great speed in all directions as if they had all been propelled by an ancient explosive force.

AH is 495 kJ/mol for the reaction: O=O(g) → 2O(g).

The approximate change in enthalpy for the unbalanced reaction: H-C=C-H(g) + O₂(g) → CO₂(g) + H₂O(g) is approximately -777 kJ.

The estimated enthalpy of formation for nitric acid (HNO₃) is approximately -163 kJ/mol.

The Lewis symbol of a selenium atom has 2 unpaired electrons and 2 paired electrons.

The Lewis symbol of the selenide ion has 4 paired electrons.

The Lewis symbol of the iron(III) ion has 6 paired electrons.

1. The reaction O=O(g) → 2O(g) involves breaking the OO bond, which has a bond dissociation energy of 495 kJ/mol, resulting in two oxygen atoms.

2. To determine the change in enthalpy, the average bond energies from Table 8.5 are used. The reaction involves breaking the H-C and O=O bonds and forming the CO and H-O bonds. The approximate change in enthalpy is -777 kJ, indicating an exothermic reaction.

3. The enthalpy of formation for nitric acid (HNO₃) is estimated using the average bond energies. The enthalpy of formation is approximately -163 kJ/mol, indicating the formation of nitric acid is exothermic.

4. The Lewis symbol of a selenium atom shows 2 unpaired electrons and 2 paired electrons, represented as [Se]••.

5. The Lewis symbol of the selenide ion (Se²⁻) shows 4 paired electrons, represented as [Se]••••.

6. The Lewis symbol of the iron(III) ion (Fe³⁺) shows 6 paired electrons, represented as [Fe]••••••.

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The nuclear reaction that requires a high temperature to start and continue is fusion.

Fusion is a process in which two light atomic nuclei combine to form a heavier nucleus. This reaction is the source of energy in stars, including our Sun. To overcome the electrostatic repulsion between positively charged nuclei and bring them close enough for the strong nuclear force to take effect, extremely high temperatures and pressures are required.

At such high temperatures, like those found in the core of the Sun, hydrogen nuclei (protons) can collide with enough energy to undergo fusion and form helium. The high temperature provides the kinetic energy necessary for the protons to overcome the electrostatic repulsion and come close enough together for the strong nuclear force to bind them.

Fusion reactions require temperatures in the range of millions of degrees Celsius to sustain the high energy required for the fusion process to continue.

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Answer:

The outer core is the only layer that is liquid. It is also mainly made from nickel and iron. The main job of the outer core is that it's responsible for the Earth's magnetic field. As the earth spins, the liquid inside this layer spins aswell, keeping it balanced.

Answer and Explanation

There are 2 significant figures.

Answer:

D

Explanation:

Acidity is from 1-6

Neutral 7

Base 8-14

Answer:

Noble gases

Explanation:

The balanced chemical equation for the given reaction is:

Ca(OH)₂(s) + 2HNO₃(aq) → Ca(NO₃)₂(aq) + 2H₂O(l)

In this equation, solid calcium hydroxide (Ca(OH)₂) reacts with aqueous nitric acid (HNO₃) to produce aqueous calcium nitrate (Ca(NO₃)₂) and liquid water (H₂O). The coefficients in the balanced equation indicate that one molecule of calcium hydroxide reacts with two molecules of nitric acid to produce one molecule of calcium nitrate and two molecules of water.

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