rank these liquids by their expected surface tension. rank from greatest to least surface tension. to rank items as equivalent, overlap them.

By optimizing the energy use of cloud computing, businesses can save money on their energy bill and reduce their carbon footprint.

Cloud computing is becoming increasingly popular due to its cost-effectiveness and scalability, but it comes with a cost: energy.

As businesses continue to invest in cloud computing, it is important to understand the need for energy efficiency and the ways this can be achieved.

Furthermore, the most efficient cloud computing systems are more reliable and resilient, making them ideal for businesses that rely on cloud-based services. Investing in energy efficient cloud computing not only saves money, but also helps the environment.

To ensure cloud computing remains a viable long-term solution for businesses, it’s essential for companies to take steps to ensure their cloud infrastructure is energy efficient.

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Halogens exist in different physical states despite being in the same group because the reliance on the number of electrons. More and stronger interactions between molecules influence higher temperatures (specifically boiling points). As the atoms increase in size, they grow farther from the center point and are less attracted to it.

The theoretical yield of the water in the reaction is 329.4 g.

We know that we can be able to obtain the theoretical yield when we look at the stoichiometry of the reaction that we have here. In this case, it is clear that would need to rely on the reaction equation and it would be our guide.

We have that;

2 moles of hydrogen would produce 2 moles of water

18.3 moles of hydrogen would also produce 18.2 moles of water.

Theoretical yield of water would now be;

18.3 * 18 g/mol

= 329.4 g

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Answer: #1 is the awnser

Explanation: trus me

C2H4, also known as ethylene, is a non-polar molecule because its atoms are arranged symmetrically. The two carbon atoms are at the center of the molecule and are bonded to two hydrogen atoms each. The two hydrogen atoms on one side of the molecule are identical to the two hydrogen atoms on the other side, so there is no overall dipole moment (uneven distribution of electrons) in the molecule. This means that there is no separation of electrical charge and no polar bonds, making C2H4 a non-polar molecule.

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Magnets on a railroad provide electricity to a train by electrifying the propulsion loops generates magnetic fields that both pull the train forward from the front and push it forward from behind.

A magnetic field is described as a vector field that describes the magnetic influence on moving electric charges, electric currents, and magnetic materials.

Electrodynamic suspension (EDS) uses superconducting electromagnets or strong permanent magnets that create a magnetic field, this  magnetic field induces currents in nearby metallic conductors when there is relative movement and hence  pushes and pulls the train towards the designed levitation position on the guide way thereby providing electricity.

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In a chemical reaction, reagents can be used to make, measure, or detect other compounds.

What are reagents in organic chemistry?

The term "reagent" in organic chemistry refers to a chemical component (a compound or combination, often composed of tiny inorganic or organic molecules) added to bring about the desired transformation of an organic substance. The Collins reagent, Fenton's reagent, and Grignard reagents are a few examples.

Reactants fluctuate during a chemical reaction, creating a variety of distinct products. While reactants are used to change compounds into new products, solvents are used to dilute solutions or dissolve soluble materials. This distinguishes solvents from reactants. 

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The standard heat of vaporization of H₂0 is +2.5 kJ/g.

The standard heat of formation  of a compound is described as the change of enthalpy during the formation of 1 mole of the substance from its constituent elements in their reference state, with all substances in their standard states.

To calculate it, we need to divide the total energy required to change the 20g of H₂0 to steam by the amount of substance being vaporized.

The amount  is 20 g

the total energy required = 50kj

Therefore the standard heat of vaporization of H₂0 is   20/50 = +2.5 kJ/g

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Hey there!

Answer:

Platinum (Pt) is the element in group 10, period 6, on the Periodic Table with the atomic number 78. The element is a heavy, malleable, ductile, grey-white transition metal, used in various ways.

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Answer:

Molar mass is the mass of a substance that has 6.022 × 1023 atoms

The rate of concentration change for hydrogen in the reaction N2 + 3H2 +NH3 is -0.3x10-4 Ms-1.

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Total ATP are produced through ETS only from two molecule of 3-phosphoglycerate is 28 ATP

In the glycolytic process, one molecule of 3-phosphoglycerate will yield one NADH from the creation of pyruvate, and two acetyl co-A from that. When acetyl Co-A enters the Kreb's Cycle, it produces three NADH and one FADH₂.

​

Now, this NADH and FADH₂will participate in ETS. Total 14 ATP will form in the following ways:

4 NADH total will result in 4 X 3= 12 ATP.

A total of 1 FADH₂ will result in 1 x 2= 2 ATP. Thus, 14 ATP will be created in total. so if there's 2 the total will be 2 x14 ATP = 28 ATP

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All the noble gases are found in Group 18 of the periodic table. Hence, Option D is the correct answer

The noble gases are a group of elements found in the periodic table. They are characterized by their stability and low reactivity. The noble gases are helium, neon, argon, krypton, xenon, and radon. All these elements are located in the same group in the Periodic Table, Group 18, also known as the "inert gases" group. They are located on the far right-hand side of the table, and they have the highest electron configurations, which makes them chemically unreactive.

In summary, the noble gases are found in Group 18 of the periodic table and they are helium, neon, argon, krypton, xenon, and radon.

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Answer: At the top

What is Activity Series?

An activity scale is a kind of element classification system that ranks how responsive certain elements are to other elements. The activity series determines reactivity based on how well a particular element can displace hydrogen gas from acidic solutions and water.

Reactivity of elements:

The reactivity of metals is based on imperfect external orbitals or electronic configurations. Metals tend to donate electrons and thus form positively charged ions. Higher atomic number metals tend to be more reactive because their electrons are farther from the positively charged nucleus, making them easier to remove.

Hence, The most reactive metal is at the top of the row and the least reactive metal is at the bottom.

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Hexane is not soluble in water.

Hexane is a hydrocarbon compound and is composed of only carbon and hydrogen atoms. Hydrocarbons are nonpolar molecules, and therefore they do not interact well with polar molecules such as water. Because of this, hydrocarbons like hexane tend to be insoluble in polar solvents like water.

Water molecules are polar, which means that they have a partial negative charge on one end and a partial positive charge on the other end. Nonpolar molecules such as hexane, do not have any charges, they do not interact well with water molecules because they do not have any charges to form hydrogen bonds with water molecules.

Furthermore, Hexane is less dense than water, which means that it will float on top of water and will not mix with it.

In summary, hexane is not expected to be very soluble in water because it is a nonpolar hydrocarbon and does not have any charges to interact with the polar water molecules.

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The pressure of a gas is the force that the gas exerts on the walls of its container.

Let’s start with the ideal gas law, PV = nRT. In this equation, ‘P’ represents atmospheric pressure, ‘V’ represents volume in liters, ‘n’ represents the number of particles in moles, ‘T’ represents temperature in Kelvin, and ‘R’ represents the ideal gas constant (0.0821 liter atmospheres per moles Kelvin). The force that a gas exerts on the walls of its container is defined as its pressure.

When you blow air into a balloon, it expands because the pressure of air molecules on the interior of the balloon is greater than on the outside. Pressure is a characteristic that governs the direction of mass flow.

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CCl4 is a nonpolar covalent bond.

This is because the molecule has a symmetrical shape, with the four chlorine atoms arranged around the central carbon atom in a tetrahedral formation. Because the electrons are distributed evenly around the central atom, there is no partial charge on any one side of the molecule, making it nonpolar.  As a result, the electrons are evenly distributed among the atoms, resulting in no partial charges. This creates a nonpolar bond because there is no separation of charge, meaning the bond is neutral and has no dipole moment. Additionally, chlorine is more electronegative than carbon, so the electrons are pulled closer to the chlorine atoms, further contributing to the nonpolar nature of the bond.  

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To calculate the number of molecules present in 64 grammes of SO2, you first need to know the molar mass of SO2. The molar mass of SO2 is 64.06 g/mol.

Then, you can use the formula: moles = mass divided by molar mass

So, SO2 moles = 64/64.06

The molecular weight of SO2 is approximately 0.998.

Then, you can use Avogadro's number, which is 6.022 x 1023, to calculate the number of molecules:

Molecules = moles multiplied by Avogadro's number

So, molecules of SO2 = 0.998 x 6.022 x 1023

The number of molecules of SO2 present in 64 grammes is approximately 6.00 x 1023.

Note: This is an approximation because the real number of molecules present in 64 g of SO2 can be affected by experimental errors or other sources of uncertainty.

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Answer:

Electronic configuration of Cl = 2,8,7

Valency of Cl = -1

Explanation:

Given,

The atomic number of X = 17

  Element with atomic number 17 = Chlorine(Cl)

The mass number of element = 35

Electronic configuration of Cl = 2,8,7

Valency of Cl = -1

Volume is the amount of space an object takes up. It is typically measured using cubic units, and estimated using a variety of formulas. For example, a rectangular bathtub that is 1 foot tall, 2 feet wide, and 4 feet long will have a volume of 8 cubic feet.

Finding the volume of an object can help us to determine the amount required to fill that object, like the amount of water needed to fill a bottle, an aquarium or a water tank.

“Volume is the measure of the 3-dimensional space occupied by matter, or enclosed by a surface,” according to the National Institute of Standards and Technology’s U.S. Office of Weights and Measures. Simply stated, it is the amount of liquid or gas that will take up a defined space.

Commonly measured in cubic units, the standard unit of volume is a cubic meter. Depending on what you are measuring, you can then break it down into the smaller cubic decimeter—known as a liter—and the cubic centimeter, better known as a milliliter

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The diameter of a ground-state hydrogen atom using the power of 10, in meters, is 1.058 x 10^{-10} using the value of Bohr radius of Hydrogen atom.

Throughout the development of particle physics, under modern science, scientists have created different models to understand the atom. When we talk about the diameter of an atom, we refer to the Bohr radius, which is the radius from the nucleus to the orbiting shell electron.

In the case of a hydrogen atom, it has one electron, and the Bohr radius in the ground state is 5.29 x 10^{-11} meters.

To find the diameter, we would have to multiply the Bohr radius by 2. as diameter is the double of radius.

Diameter of hydrogen in ground-state = 2 x 5.29 x 10^{-11}  meters

                                                                = 10.58 x 10^{-11} meters

Thus, the diameter of a hydrogen atom in ground-state, using the value of Bohr radius of hydrogen is 1.058 x 10^{-10} meters using power of 10.

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Answer:

4NaHCO3---->2Na2CO3+2CO2+2H2O

1st question : There will be 308.76 liters of H₂ in 13.75 moles. 2nd question : There will be 24.48 moles of 548 liters of O₂ .

For first part, Given we have 13.74 moles of H₂. We know its molecular mass which is 2 grams/mole. Now calculating the total mass :
⇒molecular mass x moles

⇒ 2 x 13.74

⇒27.48 grams

Now, we know that density = mass/volume, Therefore, Volume = mass/density. The density of Hydrogen gas is 0.089 g/l

∴ total mass/ density = volume

⇒27.48 grams/0.089 g/l

⇒308.76 liters

For 2nd part, We can calculate total mass of Oxygen gas by the same density formula which is mass = density x volume. The density of oxygen gas is 1.43 g/l. Therefore,

⇒1.43 x 548

⇒783.64 grams

Now, we can calculate moles by dividing total mass by molecular mas (molecular mass of oxygen gas is 32 grams/mole)

⇒ 783.64/32

⇒24.48 moles

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Ionic bonds are created when two oppositely charged ions are attracted to one another by electrostatic force. A chemical element is uniquely defined by its atoms, which are tiny pieces of substance.

An atom is made up of a core nucleus and one or more negatively charged electrons that orbit it. The positively charged, comparatively hefty protons and neutrons that make up the nucleus may be present. Any elementary particle of matter with at least one proton is referred to as an atom. Examples of atoms are neon (N) and hydrogen (H) (Ne). Chemistry's fundamental building component is an atom. It is the lowest fraction of substance into which electrically charged particles cannot be released. It is also the smallest piece of substance with chemical element-like characteristics.

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Answer:

atomic number

Explanation:

# of protons

The balanced equation would be [tex]16Cr(s) + 3S_8(s) --- > 8Cr_2S_3 (s)[/tex].

A balanced chemical equation will have as many atoms of different elements in the products as in the reactants. In other words, a balanced chemical equation will obey the law of conservation of atoms.

According to the law of conservation of atoms, atoms can neither be created nor destroyed but can be converted from one form to another during the course of chemical reactions.

Following this law, the balanced equation for the reaction would be [tex]16Cr(s) + 3S_8(s) --- > 8Cr_2S_3 (s)[/tex]

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For fermentation process to successfully occur, Oxygen gas (O2) must not enter the carboy, because the pyruvate used in the process, gets completely oxidized when oxygen gas is present.

Fermentation is a metabolic process that always must take place in the absence of oxygen. Many of the beneficial microorganisms, create desired changes in different types of beverages and foods through this process of fermentation. And the resulting products of fermentation reaction thus formed, have better/more favorable flavor and taste, and also more life as they get preserved during the process. In addition to this, these microorganisms also provide several health benefits.

The process of fermentation to occur successfully, does not require oxygen gas as it is an anaerobic process. If by any chance or means, oxygen gas is present, the pyruvate used would be completely oxidized during the reaction forming carbon dioxide and water molecules as the by products, by the action of yeast spiration. Moreover, these yeast species needed in the reaction, produce ethanol only in an anaerobic (oxygen-less) environment by another process called the Pasteur Effect.

There are generally three types of fermentation processes based on the end products obtained using the pyruvate. They are:

Acetic Acid Fermentation, Lactic Acid Fermentation, and Alcoholic Fermentation.

Therefore, Oxygen Gas is the correct answer to this question.

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N2(g) + 3H2(g) 2NH3(g) + Heat is our equilibrium reaction. Let's imagine that we raise the nitrogen gas concentration. We anticipate a rightward change in the equilibrium.

So, the limiting reagent is oxygen. Let's now determine how much hydrogen is present in excess in the reaction mixture. We'll calculate how many moles of hydrogen are needed to react with 0.4688 moles of dioxygen for that.

The rate doubles when the concentration doubles. The rate is inversely related to the square of the reactant concentration. The rate increases by four times when the concentration is doubled.

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This is a homogeneous mixture. A homogeneous mixture is a mixture in which the components are evenly distributed throughout the mixture, meaning that all parts of the mixture have the same composition.

In this case, the oil and vinegar are mixed together in a blender until a smooth consistency is formed. This means that the oil and vinegar are evenly distributed throughout the mixture, creating a uniform composition throughout the entire mixture.

This is different from a heterogeneous mixture, in which the components are not evenly distributed, resulting in a mixture that has different compositions in different parts. For example, a salad with mixed greens, cherry tomatoes, cucumbers, and croutons is a heterogeneous mixture, as the ingredients are not evenly distributed throughout the salad.

1.60 grams of Argon gas at STP is equal to 11.2 L.

What is standard temperature and pressure?

Standard temperature and pressure (STP) is a set of conditions that are commonly used as a reference point for measuring the properties of gases and other substances. At STP, the temperature is defined as 0 degrees Celsius (273.15K) and the pressure is defined as 1 atmosphere (101.325 kPa).

The volume of a gas at standard temperature and pressure (STP) can be calculated using the ideal gas law:

PV = nRT

Where P is the pressure, V is the volume, n is the number of moles, R is the ideal gas constant and T is the temperature.

At STP, the pressure is 1 atm and the temperature is 0°C (273.15 K)

We can use the equation n = m/M , where n is the number of moles, m is the mass and M is the molar mass.

Given that the mass of Argon is 1.60 grams, we can calculate the number of moles:

n = m/M = 1.60/40 = 0.04 mol

We can substitute the value of n, P, T and R into the ideal gas law to calculate the volume.

V = nRT/P = 0.04 mol * 8.314 J/mol*K * 273.15 K / 1atm = 11.2 L

Therefore, 1.60 grams of Argon gas at STP is equal to 11.2 L.

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