what is the orbital notation for silver?

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Distance covered in 12 minutes = 18 km, now

Unit rate is equal to :

The train travels 1.5 km in 1 minute time interval.

Answer:

\(\huge\boxed{\sf 1\ minute = 1.5\ kilometers}\)

Explanation:

12 minutes = 18 kilometers

Divide both sides by 12

12/12 minutes = 18/12 kilometers

1 minute = 3/2 kilometers

1 minute = 1.5 kilometers

\(\rule[225]{225}{2}\)

Hope this helped!

Answer:

Work done, W = 128 kJ

Explanation:

Given that,

Weight of a mountain climber, F = 800 N

It climbs to a cliff that is 160 m high.

We need to find the work done by the mountain climber. The work done by an object is given by the formula as follows :

W = Fd

Put the values of F and d.

W = 800 N × 160 m

W = 128000 J

or

W = 128 kJ

So, 128 kJ of work is done by the mountain climber.

Answer:

Chemist Dmitri Mendeleev

Answer:

hydrogen + oxygen is equal to water Potassium Chloride + oxygen there are reaction

A plant needs Carbon dioxide, water, and sunlight, Photosynthesis takes place in the chloroplast.

Photosynthesis is the process by which plants and other organisms convert light energy into chemical energy, which can later be released through cellular respiration to power the activity of the organism.

Without Photosynthesis there would be no green plants, and without green plants, there would be no animals. Photosynthesis requires sunlight, chlorophyll, water, and carbon dioxide.

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According to the stoichiometry of the reaction, for every 2 moles of S reacted, 3 moles of O2 are consumed. Thus, the limiting reactant will be S, and it will be completely consumed.

The balanced equation shows that 2 moles of S reacts with 3 moles of O2 to produce 2 moles of SO3. Thus, for every 2 moles of S that react, 2 moles of SO3 are produced.

Since there are 5 moles of S initially, it will react with 7.5 moles of O2 (since the ratio is 2:3 for S to O2), producing 5 moles of SO3.

Therefore, after the reaction, all of the S will be consumed, and there will be 0 moles of S left in the reaction vessel.

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The possible alkynes with molecular formula C5H8 is 3.

C5H8 is Isoprene. The chemical name is Pentyne. This formula can also represent a monovalent functional group derived from any hydrocarbon having the formula C5H9 by removal of a hydrogen atom. or divalent radicals derived from C5H10 minus two hydrogen atoms;

The 3 alkynes are 1-Pentyne, 2-Pentyne, 3-Methyl-1-butyne or isopentyne.

Name of (ch3)2c(ch2ch3)ccch(ch3)2 is 5-ethyle-2,5-dimethyl-3-hexyne.

Name of brch2ch2c cch2ch3 is 1-bromohex-3-yne.

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The chemist has 642.4 millimoles of barium acetate in the solution.

To calculate the millimoles of barium acetate (Ba(C₂H₃O₂)₂) in the solution, we can use the formula:

moles = molarity × volume (in liters)

First, let's convert the volume from milliliters (mL) to liters (L):

440.0 mL ÷ 1000 = 0.440 L

Now we can substitute the given values into the formula:

moles = 1.46 M × 0.440 L

moles = 0.6424 mol (rounded to 4 decimal places)

To convert the moles to millimoles, we multiply by 1000:

millimoles = 0.6424 mol × 1000

millimoles = 642.4 mmol (rounded to 3 significant digits)

Therefore, the chemist has 642.4 millimoles of barium acetate in the solution.

It's important to note that the molarity (M) represents the number of moles of solute per liter of solution. By multiplying the molarity by the volume in liters, we can find the number of moles of solute. To convert moles to millimoles, we multiply by 1000. The result represents the millimoles of barium acetate present in the given volume of solution.

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Answer: at dynamic equilibrium, the rates of forward and reverse reactions are equal.

Explanation:

The correct statement defines dynamic equilibrium "at dynamic equilibrium, the rates of forward and reverse reactions are equal."

The state of a particular system wherein the reversible reaction takes place ceases modifying the ratio of reactants as well as products, but there is still a transfer of substances among the reactants and products is known as dynamic equilibrium.

Chemical reaction can be defined as the a method for creating novel chemicals with unique features.

The correct statement defines dynamic equilibrium "at dynamic equilibrium, the rates of forward and reverse reactions are equal."

Therefore, the correct answer will be option (a).

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Water 3.0 deals mainly with sewage treatment. The primary aim of this project is to reduce the harmful impacts of chemical pollutants from industrial and agricultural activities on natural water resources.

Currently, used wastewater treatment technologies can break down some of the chemicals in wastewater but not all of them. Chemicals that are not broken down are referred to as persistent organic pollutants. These chemicals persist in the environment for long periods, and they can cause severe damage to aquatic life and human health.
Currently, the primary challenge facing water treatment technologies is the removal of persistent organic pollutants such as pesticides, pharmaceuticals, and endocrine-disrupting chemicals from wastewater.

These pollutants are generally water-soluble and resist microbial degradation, making them hard to remove from wastewater using current water treatment technologies. For example, conventional activated sludge treatment used in wastewater treatment plants does not remove some persistent organic pollutants from wastewater.
Failure to remove these pollutants from wastewater can have significant environmental and health impacts.

For example, pharmaceutical chemicals can cause antibiotic resistance, while endocrine-disrupting chemicals can cause birth defects, cancer, and other health problems.

Therefore, there is a need to improve wastewater treatment technologies to remove persistent organic pollutants from wastewater.
In conclusion, wastewater treatment technologies can break down some chemicals but not all. Chemicals that are not broken down are persistent organic pollutants and pose a significant risk to the environment and human health. Therefore, it is important to develop wastewater treatment technologies that can remove these pollutants from wastewater.

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gram is not the SI unit of measurement. Thus option A is correct.

The unit of measurement can be defined as the magnitude of quantity that is used as the measurement for the same form, adopted and specified by the law or convention.

We can quantify different types of measurement by multiple measuring unit and this unit is called as the standard quantity of the physical property can be used as the factor for expressing the quantity of that specific.

There are apparent limitations of single unit of measurement like the use of the measurement of the same unit for the distance between two cities and the length of a pencil is impractical.

On the other hand length and weight, and volume are measured in different unit system like CGS system of units, the FPS system of units, the MKS system of units, and the SI system of units etc.

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The electronic configuration refers to the distribution of electrons in the various orbitals of an atom or ion. It follows a specific notation that represents the energy levels and sublevels occupied by electrons. The outer electron configuration of a noble gas typically has a full valence shell, meaning that the outermost energy level is completely filled with electrons.

For example, helium (He) has a configuration of 1s2.

Neon (Ne) has a configuration of 1s22s22p6.

Argon (Ar) has a configuration of 1s22s22p63s23p6.

Therefore, any configuration with a completely filled valence shell could belong to a noble gas.

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a minimum of three seismograph stations are needed to find an earthquake's epicenter using the S-P time method.

Scientists use triangulation to find the epicenter of an earthquake. When seismic data is collected from at least three different locations, it can be used to determine the epicenter by where it intersects. ... Knowing this helps them calculate the distance from the epicenter to each seismograph.

Explanation:

Answer:

238 amu

Explanation:

(234 * 0.0001) + (235 * 0.0071) + (238 * 0.9928) = 238

The average atomic mass of uranium is 237.98 amu.

Given:

Three isotopes of uranium element.

To find:

The average atomic mass of uranium.

Solution:

Mass of uranium-234 isotope = 234 amu

Percentage of the abundance of uranium-234 isotope = 0.01%

Fractional abundance of uranium-234 isotope = 0.0001

Mass of uranium-235 isotope = 235 amu

Percentage of the abundance of uranium-235 isotope = 0.71%

Fractional abundance of uranium-235 isotope = 0.0071

Mass of uranium-238 isotope = 238 amu

Percentage of the abundance of uranium-238 isotope = 99.28%

Fractional abundance of uranium-238 isotope = 0.9928

The average atomic mass of uranium will be given by:

\(M=\sum [\text{Mass of an that isotope}\times \text{Fractional abundance of isotope}]\\\\=234amu\times 0.0001+235amu\times 0.0071+238amu\times 0.9928\\\\=237.9783 amu\approx 237.98 amu\)

The average atomic mass of uranium is 237.98 amu.

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Answer: Option B; It traps light energy and converts it into chemical energy.

Las diferencias entre el consumo de agua existen debido a que varios factores externos inciden en este proceso de ingesta de agua.

El agua es un compuesto químico que es vital para la vida de los seres vivos. En el caso de los humanos es necesario tomar agua para evitar la deshidratación y activar muchos procesos naturales del cuerpo.

La cantidad de agua que debe tomar un humano depende de varios factores como:

Incluso la cantidad de agua de agua puede variar dependiendo del peso de cada persona, aquellas personas que pesan más deben beber más agua, que aquellas que tienen menor peso debido a que la cantidad de agua debe ser proporcional a su peso.

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Option 1 is correct. There are three types of UV radiation: UVA, UVB, and UVC. UVC has the shortest wavelength, around 100-280 nm, but is mostly absorbed by the Earth's atmosphere and doesn't reach the surface. UVB has a wavelength of 280-320 nm and is responsible for sunburns and skin damage. UVA has the longest wavelength, around 320-400 nm, and can penetrate deeper into the skin, causing aging and wrinkling.

Option 2 is incorrect because UV radiation, in general, can be damaging to the Earth's surface, causing skin cancer, harming plant life, and contributing to climate change.

Option 3 is partially correct because UV radiation with a wavelength of 300 nm falls within the UVC range, but it's important to note that this type of radiation is mostly absorbed by the ozone layer before reaching the Earth's surface.

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Answer:

It is always less than the theoretical yield

Explanation:

For many chemical reactions, the actual yield is usually less than the theoretical yield. This is due to possible loss in the process or inefficiency of the chemical reaction.

The empirical formula of the compound containing 12 grams of carbon, 2 grams of hydrogen and 16 grams of oxygen is CH2O

To determine the empirical formula of a compound, one needs to know the relative amounts of each element in the compound. In this case, we are given that the compound contains 12 grams of carbon, 2 grams of hydrogen, and 16 grams of oxygen.

The first step is to convert the masses of each element into moles by dividing each by its molar mass. The molar mass of carbon is 12 g/mol, hydrogen is 1 g/mol, and oxygen is 16 g/mol. Therefore, we have:

- Carbon: 12 g / 12 g/mol = 1 mol
- Hydrogen: 2 g / 1 g/mol = 2 mol
- Oxygen: 16 g / 16 g/mol = 1 mol

Next, we need to find the simplest whole number ratio of the atoms in the compound. This is done by dividing each mole value by the smallest mole value. In this case, the smallest mole value is 1, so we divide all mole values by 1:

- Carbon: 1 mol / 1 = 1
- Hydrogen: 2 mol / 1 = 2
- Oxygen: 1 mol / 1 = 1

Therefore, the empirical formula of the compound is CH2O, which represents the simplest whole number ratio of the atoms in the compound.

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Answer:

We can Interprete it as 1mole of Sodium Chloride and 1mole of Silver Nitrate React to Produce

1Mole of Silver Chloride and 1Mole of Sodium Nitrate

Answer:NaCL

Explanation:Edg

The balanced equation for the reaction of barium sulfate with carbon from burned paper producing barium sulfide and carbon monoxide is:

\(BaO_{4}S\) + 4C(s) → BaS(s) + 4CO(g)

Word equation from \(BaO_{4}S\)(s) + 4C(s) → BaS(s) + 4CO(g) is

Barium Sulfate + Carbon = Barium Sulfide + Carbon Monoxide

One mole of Bаrium Sulfаte [BаO4S] and four moles of Cаrbon [C] reаct to form one mole of Bаrium Sulfide [BаS] аnd four moles of Cаrbon Monoxide [CO]

1. Lаbel eаch compound (reаctаnt or product) in the equаtion with а vаriаble to represent the unknown coefficients.

a \(BaO_{4}S\) + b C= c BaS + d CO

2. Creаte аn equаtion for eаch element (C, Bа, O, S) where eаch term represents the number of аtoms of the element in eаch reаctаnt or product.

Ba: 0a + 1b = 1c + 0d

C: 1a + 0b = 0c + 1d

O: 0a + 4b = 0c + 1d

S: 0a + 1b = 1c + 0d

3. Simplify the result to get the lowest, whole integer values.

a = 1 (\(BaO_{4}S\))

b = 4 (C)

c = 1 (BaS)

d = 4 (CO)

4. Count the number of аtoms of eаch element on eаch side of the equаtion аnd verify thаt аll elements аnd electrons (if there аre chаrges/ions) аre bаlаnced.

\(BaO_{4}S\) + 4 C = BaS + 4 CO

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Answer:

the electronic configuration of Li is

=》 2, 1

and in spdf configuration it's 1s^2 2s^1

Answer: [He] 2s1

Explanation:

Electrons per shell: 2,1

Atomic number: 3

Electronegativity: 0.98

Atomic mass: 6.941 u

Discoverer: Johan August Arfwedson

Period: Period 2 element

Answer:

toward the hydrogen atom

Explanation:

Answer:

toward the chlorine atom.

Explanation:

took the quiz and got it correct :)

To calculate the pH of a solution, we need to determine the concentration of hydrogen ions ([H+]). In the case of the solution of HONH2, we can use the given Kb value to find the concentration of hydroxide ions ([OH-]). Then, we can use the fact that water autoionizes to calculate the concentration of hydrogen ions ([H+]).

The Kb expression for HONH2 is:

Kb = [OH-][HONH2]/[H2ONH]

Since we are given the concentration of HONH2 and Kb, we can rearrange the equation to solve for [OH-].

[HONH2] = 0.500 M

Kb = 1.1 × 10^(-8)

Let's assume x is the concentration of [OH-].

[HONH2] = [H2ONH]

[HONH2] = [OH-] + [H2ONH]

0.500 = x + x

0.500 = 2x

x = 0.250

Now that we have the concentration of [OH-] as 0.250 M, we can use the fact that water autoionizes to calculate the concentration of [H+]. At 25°C, the concentration of [H+] is equal to [OH-] since water is neutral.

[H+] = [OH-] = 0.250 M

The pH is calculated using the formula:

pH = -log[H+]

pH = -log(0.250)

pH ≈ 0.60, Therefore, the pH of the 0.500 M HONH2 solution is approximately 0.60.

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Answer:

Translate your language to English ok

Answer:

1.4 x 10^-1 Pa

Explanation:

answer is above

Answer:

12916000

Explanation:

When you're converting from a scientific notation into real number (standard form), you must move the decimal based on the power of 10. Since the power of 10 is 7, I moved the decimal place to the right 7 times thus giving me 12916000.

I hope this helps! :D

Answer:

Q = 3440Kj

Explanation:

Given data:

Mass of gold = 2kg

Latent heat of vaporization = 1720 Kj/Kg

Energy required to vaporize 2kg gold = ?

Solution:

Equation

Q= mLvap

It is given that heat required to vaporize the one kilogram gold is 1720 Kj thus, for 2 kg

by putting values,

Q= 2kg ×  1720 Kj/Kg

Q = 3440Kj

Explanation:

Since there is a vacuum in space, there is no oxygen there, so how does the sun burn? It releases energy because of nuclear fusion in it's core where hydrogen turns into helium. That is how the sun becomes hot amd bright.

Answer:

the Earth rotates on an imaginary line called its axis and different parts of the planet are facing towards the Sun or away from it. it takes 24 hours for the world to turn all the way around, and we call this a day.

Explanation: