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She test this idea in the Flowing Water Model through integrated water flow model

Flowing water model is the computer programmed for simulating water flow through the integrated land surface water and groundwater flow systems and hydroelectric energy is power made by the moving water and water always flow downhills because of gravity and she She test this idea in the Flowing Water Model through integrated water flow model

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Answer:

attracted towards each other

Explanation:

hope u like the ans

Answer:

The ions in metal behavior by repelled by electro

Answer: \(Zn+2Ag^+\rightarrow Zn^{2+}+2Ag\)

Explanation:

Oxidation-reduction reaction or redox reaction is defined as the reaction in which oxidation and reduction reactions occur simultaneously and the number of electrons lost is equal to the number of electrons gained.

Oxidation reaction is defined as the reaction in which a substance looses its electrons. The oxidation state of the substance increases.

Anode : \(Zn\rightarrow Zn^{2+}+2e^-\)

Reduction reaction is defined as the reaction in which a substance gains electrons. The oxidation state of the substance gets reduced.

Cathode : \(2Ag^++2e^-\rightarrow 2Ag\)

Thus the complete ionic equation will be :

\(Zn+2Ag^+\rightarrow Zn^{2+}+2Ag\)

The reaction between team and red hot iron is reversible reaction means that the process can be reversed. Iron oxide will be converted back to iron if the hydrogen produced is not eliminated. As a result, the reaction can keep on.

The reaction between team and red hot iron:

3Fe + 4H₂O ⇋ Fe3O₄+ 4H₂

The reaction between team and red hot iron is reversible because the generated iron oxide is reduced back to iron if the hydrogen is not removed, this process is reversible.

Iron is not particularly reactive at ambient temperature, therefore this reaction only happens when it is red hot (room temperature).

As a result, alkali metals have the ability to react with water to produce hydrogen gas. However, because iron is only moderately reactive, it cannot react with water at room temperature.

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Answer:

o

Explanation:

Answer:

7 Images

Explanation:

n = 360 / a - 1 =  360 / 45 - 1 = 8-1= 7

(Based on multiple reflections)

I hope im right!!

Answer.

Universal indicator

Explanation.

Universal indicator has many different colour changes, from red for strongly acidic solutions to dark purple for strongly alkaline solutions. In the middle, neutral pH 7 is indicated by green.

The elements that have the same number of valence electrons are silicon and carbon. The answer is option C and D. An element is a pure substance that cannot be separated into any simpler substances by chemical means. The periodic table is made up of elements.

These are some of the characteristics of an element: All atoms of an element have the same number of protons in their nucleus, which is the atomic number. The majority of an element's properties are determined by the number of electrons in its outermost shell. This is also referred to as the valence shell. Silicon and carbon both have four valence electrons. They both belong to Group 14, which is also known as the Carbon Group, on the periodic table, which includes elements with four valence electrons. Therefore, Silicon and Carbon both have the same number of valence electrons. The answer is option C and D

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Answer: 351

Explanation: From °C to kelvin we do

K=273+°C

From Kelvin to °C we do

°C=K-273 or -273+ K

Answer:

100g gold ring - 58g gold.

Explanation:

Assuming that the 100% represents the 100g of the gold ring, with a mathematical rule of three we can calculate the 58% of gold:

So, in 100g of the gold ring, there are 58g of gold.

Answer:

1.11 M NaCl

Explanation:

Quizlet???

Answer:

Far left-these are group 1A elements

Answer:  far left

Explanation:  look at periodic table..most reactive metals are located far left.

Answer:

Presence of an Electrolyte

Metal Surface

Oxygen or Other Oxidizing Agent

Difference in Potential

Electrochemical Pathway

Explanation:

Answer:

Sorry can't help

Explanation:

Cant help!

Exergonic reactions release energy during product formation.

Exergonic reactions are chemical reactions that release energy as they occur. In an exergonic reaction, the reactants contain more potential energy than the products, and the excess energy is released into the environment.

Exergonic reactions are important in many biological processes, such as cellular respiration, where energy is released from the breakdown of glucose to power the cell's activities.

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Answer:

Physical Properties of Hafnium Hafnium is a shiny and silvery metal exhibiting ductile features. It is usually resistant to corrosion and exhibits similar chemical properties to that of zirconium.

Atomic Mass: 178.49 g.mol −

1Atomic Number: 72Symbol: Hf

The mass of two moles of anhydrous sodium sulfate na2so4 is 284.08 g.

The mass of a substance can be calculated from the number of moles of the substance using the substance's molar mass. The molar mass of a substance is the mass of 1 mole of the substance, and it is typically measured in grams per mole (g/mol).

To find the mass of two moles of anhydrous sodium sulfate (Na2SO4), we can use the substance's molar mass:

mass = (2 moles) x (142.04 g/mol)

mass = 284.08 g

So, the mass of two moles of anhydrous sodium sulfate is 284.08 g. This is the mass of the substance when it is in the form of Na2SO4.

49 becase you multilpy it

Explanation:

The percent mass of H is 3.3%. This can be found from the data of the elements that we have in the problem.

To find the percent mass of an element in a compound, you need to follow these steps:

Determine the molar mass of the compound: This is the sum of the atomic masses of all the elements in the compound. You can find the atomic masses of elements on the periodic table.

Determine the molar mass of the element: This is the atomic mass of the element as it appears in the compound.

Calculate the moles of the element in the compound: This can be done using the formula: Moles = Mass of element / Molar mass of element.

Calculate the percent mass of the element in the compound: This can be done using the formula: Percent mass = (Moles of element x Molar mass of element / Molar mass of compound) x 100%.

Molar mass of the compound = 239 g/mol

Mass of H present = 8 (1) = 8

Percent of H = 8/239* 100/1

= 3.3%

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Answer:

Double Displacement (Acid-Base)

Explanation:

Answer: 1.76 M

Explanation:

To calculate the number of moles for given molarity, we use the equation:

\(\text{Molarity of the solution}=\frac{\text{Moles of solute}\times 1000}{\text{Volume of solution (in L)}}\)     .....(1)

Molarity of \(NaNO_3\) solution = 0.35 M

Volume of solution = 125 mL

Putting values in equation 1, we get:

a) \(0.35M=\frac{\text{Moles of}NaNO_3\times 1000}{125ml}\\\\\text{Moles of }NaNO_3=\frac{0.35mol/L\times 125}{1000}=0.044mol\)

1 mole of \(NaNO_3\) contains = 1 mol of \(NO_3^-\)

Thus \(0.044mol\) of \(NaNO_3\) contain= \(\frac{1}{1}\times 0.044=0.044\) mol of \(NO_3^-\)

b) \(1.1M=\frac{\text{Moles of}Mg(NO_3)_2\times 1000}{450ml}\\\\\text{Moles of }Mg(NO_3)_2=\frac{1.1mol/L\times 450}{1000}=0.495mol\)

1 mole of \(Mg(NO_3)_2\) contains = 2 mol of \(NO_3^-\)

Thus \(0.495mol\) of \(Mg(NO_3)_2\) contain= \(\frac{2}{1}\times 0.495=0.99\) mol of \(NO_3^-\)

Total \([NO_3^-]=\frac {\text {total moles}}{\text {total volume}}=\frac{0.044+0.99}{0.575L}=1.76M\)

Thus \([NO_3^-\) after mixing is 1.76 M

The systematic name for the given formula Co(NH3)4(NO2)2IC is tetraamines(nitrator-N)cobalt(III) iodide.

Sure! Let's break down the systematic name for the given formula Co(NH3)4(NO2)2IC:

- The central metal atom is cobalt (Co).

- The ligands attached to the cobalt atom are tetraammine (NH3) and bis(nitrator-N) (NO2).

- "Tetraamine" indicates that there are four ammonia (NH3) ligands bound to the cobalt atom.

- "Bis(nitrator-N)" indicates that there are two nitrite (NO2) ligands, where each nitrite is coordinated to the cobalt atom through the nitrogen atom (nitrator-N).

Lastly, the compound is identified as iodide (IC), indicating that there is an iodide ion (I-) associated with the cobalt complex.

Therefore, the systematic name for the given formula Co(NH3)4(NO2)2IC is tetraamines(nitrator-N)cobalt(III) iodide.

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Given that 3.33 g of the gas, at 95 °C and 790 torr, occupy a volume of 1.365 L, it is chlorine gas (Cl2).

We will start by counting the amount of moles of the gas. This can be done as follows:

(V) = 1.365 L,

(T) = 95 °C,

(P) = 790 torr,

(n) =?

(T) = 95 + 273 = 368 K

(P) = 790 / 760 = 1.039 atm

(R) = 0.0821 atm

PV = nRT

1.039 * 1.365 = n * 0.0821 * 368

n = 0.0469 mole L/Kmol

Finally, we will ascertain the gas's identity as follows:

n = 0.0469 mole

M = 3.33 g

Molecular mass =?

Molar mass is equal to the product of the mass and the mole.

Molar mass equals 3.33 minus 0.0469

Gas molar mass = 71 g/mol

As a result, we can infer that the gas is chlorine gas (Cl2) because

(Cl) = 35.5 g/mol.

(Cl2) = 2 * 35.5 g/mol

= 71 g/mol

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disaccharides are catabolized to monosaccharides through a process called hydrolysis, which involves the addition of water to break the glycosidic bond between the monosaccharide units.

disaccharides, such as sucrose, lactose, and maltose, are catabolized to monosaccharides through a process called hydrolysis. Hydrolysis is a chemical reaction that involves the addition of water to break the glycosidic bond between the monosaccharide units in a disaccharide.

Enzymes called hydrolases catalyze this reaction. Specifically, carbohydrases are the type of hydrolases responsible for the hydrolysis of carbohydrates.

During hydrolysis, a water molecule is added to the glycosidic bond, causing it to break. This results in the separation of the two monosaccharide units that make up the disaccharide.

The resulting monosaccharides, such as glucose, fructose, and galactose, can then be further metabolized and used as a source of energy by cells.

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Disaccharides are broken down into monosaccharides through the process of hydrolysis.

Disaccharides are carbohydrates that contain two monosaccharide units and are linked by glycosidic bonds. Maltose, lactose, and sucrose are three examples of disaccharides. Hydrolysis is the process by which disaccharides are catabolized to monosaccharides. During the process, water is used to break the glycosidic bond between the two monosaccharide units, resulting in the production of two individual monosaccharide units.

The reaction takes place in the presence of water, which helps break the bond, resulting in the formation of two monosaccharide units.For example, the disaccharide sucrose, made up of a glucose and a fructose molecule, can be broken down into its two individual sugar components by the enzyme sucrase, which catalyzes the hydrolysis reaction. The glucose and fructose monosaccharides may then be absorbed and used by the body for energy.

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In order to get the pressure of the gas, we will use the ideal gas equation expressed as:

• P is the ,pressure ,of the gas (in atm)

• V is the v,olume ,of the gas (in L)

• n is the ,number of moles, of gas (in moles)

• R is the ,gas constant

• T is the ,temperature, in kelvin

Given the following parameters:

Substitute the given parameters into the formula:

Hence the pressure of the gas is 22.88atm

The wavelength of the emitted photon is approximately 2.44 μm.

The wavelength of the emitted photon can be determined using the Rydberg formula as follow

\(\frac{1}{\lambda}=R_H\left(\frac{1}{n_1^2}-\frac{1}{n_2^2}\right)\)

where: lambda is the wavelength of the emitted photon,

\(R_H=1.0974\times10^7\text{m}^{-1} ,$n_1=19 n_2=5 :\frac{1}\)

\({\lambda}=R_H\left(\frac{1}{19^2}-\frac{1}{5^2}\right) \frac{1}\\\\\\{lambda}=1.0974\times10^7\text{m}^{-1}\left(\frac{1}{361}-\frac{1}{25}\right) \frac{1}\\{\lambda}=1.0974\times10^7\text{m}^{-1}\left(0.002709-0.04\right) \frac{1}\\{\lambda}=1.0974\times10^7\text{m}^{-1}\times(-0.037291) \frac{1}{\lambda}=-409446.34\text{m}^{-1} \lambda=-\frac{1}{409446.34\text{m}^{-1}}=2.44\times10^{-6}\text{m}\)

Therefore, the wavelength of the emitted photon is approximately 2.44 μm.

Rounded to two decimal places, this value is equal to 2.45 μm. Thus, the correct option is A) 2.45μm.

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The world would be dark without sunlight. Animals, vegetation, and people would not exist. Without other life, there wouldn't be any.

There won't be any light from the Moon. Only because sunlight reflects off of the Moon can we see it. The Moon would vanish as the sunlight that was illuminating it did. The numerous other celestial objects in the sky, such planets, that humans can only see because of the Sun's reflected light, would also fall under this category.

Earth would swiftly become much colder without the Sun's warmth. Fortunately, Earth's ability to retain heat means that humans wouldn't immediately freeze. But life would start getting much harder right away.

Although no one can foresee the future with certainty what will happen, scientists believe that within a week or so, the average worldwide surface temperature would fall below 0 degrees Fahrenheit. You've probably endured temperature like these before during the chilly winter months.

The issue is that the temperature would keep progressively dropping. The average surface temperature of the entire planet might fall much below -100° F in just one year! The world's sea's surface layers would have frozen over by then. Although the deep waters below would be kept liquid for hundreds of thousands of years by the frozen upper layers of the oceans, they would finally freeze as Earth headed toward a stable average global surface temperature of roughly -400° F. Any remaining humans would then be exposed to the severe cosmic radiation that comes from space because the atmosphere would likewise have frozen and dropped to Earth by that time.

All photosynthesis on Earth would cease if the Sun's rays were to disappear. All living things that depend on plants for food, including humans, will eventually perish along with all plants. While some resourceful people might be able to live without the Sun for a few days, weeks, or even years, it would eventually become impossible to sustain life on Earth.

Hence, There will be no life on earth because sun is the ultimate source.

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Answer:

107.8

Explanation:

64 gram of N2H4 produce 72 gram of H20

then by crossmultiplication

64*121.3/72=107.82