How many resonance structures can be drawn for n2o?.

Answer:

(The Formation Of Bands In A Crystal)

Answer:

Four folk love legends: "Cowhand and Weaver Girl", "Meng Jiangnu crying at the Great Wall" (cry Wan Xiliang), "Liang Shanbo and Zhu Yingtai", "The Legend of the White Snake", the author does not know

The development history of the Four ancient Chinese folk legends: China is a country with a vast territory and abundant resources and a long history, which contains extremely rich national cultural heritage. Among them, the four most Chinese ones are the famous "Cowhand and Weaver Girl", "Meng Jiangnu", "Liang Shanbo and Zhu Yingtai" and "The Legend of the White Snake". The most widespread, the most influential.

Brief introduction: the gigolo knit legend began in the book of songs, cable ":" Qi he vega ", "Huan he cow". "Nineteen Ancient Poems · Long Distance Star" has called the cowherd and weaver girl husband and wife. Ying Shao "custom" Yi wen: "Zhinv Tanabata when crossing the river, make magpie bridge, legend has it that the magpie head without reason all Kun, because beam (note: bridge) to cross Zhinv also. The story has been preliminarily formed and combined with the Qixi Festival custom.

The legend of Meng Jiangnu originated from the record of Qi Liang's wife refusing to hang herself in the area of the Marquis of Qi and adhering to the rules of etiquette in the Zhuan. Later, it was added in the Dangong that "Duke Zhuang of Qi attacked Ju and took away (tunnel) and Qi Liang died. The weeping wife who greeted his coffin on the road is the archetype of the story. Han Liu Xiang's Biography of Liannu (IV) : "Qi Liangzhu died in battle, his wife cried in the city, ten days the city collapsed." And Tang (anonymous) "carved jade collection" record "Qin when Yan Qi Liang, married Meng Chao female Zhongzi wife, because good was built the Great Wall officials killed, Zhongzi cry under the Great Wall, the city collapsed. It is known that this legend was popular in the Tang Dynasty, but Meng Zhongzi and Qiliang were renamed Meng Jiangnv and Fan Xiliang in the legend. The story of Butterfly lovers first appeared in Tang's "Ten Taoist and Four Tibetan Records", which recorded the story of Liang and Zhu "having a taste of schoolmates" and "sharing the tomb". There are more detailed records in Xuanbaozhi of late Tang Zhang Reading. To the Ming Dynasty Feng Menglong's "Ancient and modern novels", and added to the British Taiwan confused belt, Liang Shanbo doubts and butterflies.

The story of White Snake came into being the latest. The origin of the story is as follows. It originates from the Three Towers of West Lake. To the Ming Dynasty Feng Menglong's "Lady White Forever Town Leifeng Pagoda" (" Warning Word "), the story has been preliminarily finalized.

Answer:

A

B

A

Explanation:

all emit light except form green grass and blue carpet

Answer:

Explanation:

To solve this problem, we can use the ideal gas law:

PV = nRT

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

At STP (standard temperature and pressure), the temperature is 0°C or 273.15 K, and the pressure is 1 atm or 101.325 kPa.

We can use the ideal gas law to find the number of moles of chlorine gas in the sample:

n = PV/RT

where P is the pressure, V is the volume, R is the gas constant, and T is the temperature in Kelvin.

First, we need to convert the given temperature of 25.2°C to Kelvin:

T = 25.2°C + 273.15 = 298.35 K

Now we can calculate the number of moles of chlorine gas in the sample:

n = (100.8 kPa)(353.2 mL)/(8.314 J/K/mol)(298.35 K)

n = 0.0158 mol

Next, we can use the number of moles and the ideal gas law to find the volume at STP:

V = nRT/P

V = (0.0158 mol)(8.314 J/K/mol)(273.15 K)/(101.325 kPa)

V = 0.364 L or 364 mL

Therefore, the volume of the chlorine gas at STP would be 364 mL.

Answer:

solids

Explanation:

Solid is A substance with definite volume and shape. Solids do not flow and therefore do not conform to the shape of their containers. Liquid - A substance with definite volume but without definite shape

Answer:B-Solids

Explanation:

Entropy is a state function and the change in entropy for a process therefore depends only on the difference between the final and initial states, not on the path taken for the process.

This means that the change in entropy is independent of the process's pathway, and only the initial and final states' properties matter. Entropy can be thought of as a measure of disorder or randomness in a system. When a system undergoes a change, such as a phase change or a chemical reaction, there is usually a change in the system's entropy. In general, any process that leads to an increase in disorder or randomness will have a positive change in entropy, while a decrease in disorder will have a negative change in entropy. For example, melting ice will have a positive change in entropy, as the solid ice becomes more disordered and randomly arranged as a liquid. In contrast, freezing water will have a negative change in entropy, as the liquid water becomes more ordered and less random as a solid.

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Answer:

Explanation:

Use your other senses such as touch or smell, does it react in different temperatures, is it then visible under a microscope, does it react with different elements or gases?   Think outside the box.

Answer:

we know that someone or something is near us even when we cant see it you see our self conscious minds can pick up on the slightest detail even when we dont pick up on it also you can  thank the six senses as well for why we can tell something or someone is there

Explanation: i watch criminal minds and pay attention to the random facts spencer reid spits out

Answer:

H - Cl2 +NaBr -> Br2+2NaCl

Answer:

Structure of boron trifluoride, an example of a molecule with trigonal planar geometry.

Examples: SO3

Coordination number: 3

Point group: D3h

Bond angle(s): 120°

HOPE ITS HELP

1 and 4 are correct. Radon is a noble gas and a nonmetal.

Answer:

Dysplastic nevi

Explanation:

Answer:

Density measures how heavy something is for its size. Liquids of different densities can not be mixed and will separate with the heavier densities at the bottom and the lighter densities at the top. The different objects float at different levels in the liquid depending on their densities.

If the new solution has a concentration of 0.5 M, then the volume of the solution is 997mL.

Required volume of the new solution will be calculated by using the below equation as:

M₁V₁ = M₂V₂, where

M₁ & V₁ are the molarity and volume of initial HCl solution.

M₂ & V₂ are the molarity and volume of final HCl solution.

On putting values from the question, to the above question we get:

V₂ = (12.1)(41.2) / (0.5) = 997 mL

Hence resultant volume of the final solution is 997 mL.

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19. place moth balls in the closet and observe after several days.

20. whenever wax or a candle burns it turns from solid to liquid but again at room temperature it turns to solid

21. evaporation, condensation, precipitation

22. it produces new substances

23. vinegar Bubbles when baking soda is added

24. steam

Benzoyl chloride is a lachrymator causing eye irritation and tearing.

What is a lachrymator and how does benzoyl chloride act as one?

The correct answer is (b) benzoyl chloride. Benzoyl chloride is a lachrymator, which means it can cause tearing and irritation to the eyes. Methanol and sodium hydroxide are not lachrymators, and sodium chloride is a common salt that does not have any lachrymatory properties.

A lachrymator is a substance that can cause tearing and irritation to the eyes. Benzoyl chloride is one such substance that acts as a lachrymator. It is commonly used in the production of dyes, pharmaceuticals, perfumes, and resins. When exposed to air, benzoyl chloride releases a vapor that reacts with the moisture in our eyes and respiratory system, causing inflammation, burning, and tearing. Eye irritation is a common symptom of exposure to lachrymators, and it can be harmful if the exposure is prolonged or at high concentrations. Therefore, caution must be taken when handling such substances to avoid any unnecessary harm.

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Answer:

I guess second option i.e. More potential employment opportunities and revenue because collecting recyclable material needs manpower to collect them, and secondary employment in transport i.e. to collect all the material at one place we need transport and so on!

Answer:

Arcuate: A fan-shaped delta, bowed or curved.

Cuspate: V-shaped delta.

Bird-foot: Outstretched claws delta

Inverted: The narrow end of delta, or river delta.

Waves: Large or regular shaped waves delta.

Tires: Round shaped delta

River estuary: A landform deposited by sediment

Explanation:

Answer:

1.4 L.

Explanation:

Applying Charles law,

V/T = V'/T'....................... Equation 1

Where V = Initial volume, V' = Final volume, T = Initial Temperature in Kelvin, T' = Final Temperature in Kelvin.

Make V' the subject of the equation

V' = (V/T)T'..................... Euqation 2

Given: V = 1.5 L, T = 295 K, T' = 2 °C = (2+273) K = 275 K

Substitute these values into equation 2

V' = (1.5/295)275

V' = 1.398

V' ≈ 1.4 L

When the reaction Ca2+ (aq) + 2 OH- (aq) → Ca(OH)2 (s) occurs, the OH- ions combine with the Ca2+ ions to form a solid precipitate of calcium hydroxide, Ca(OH)2.

The chemical reaction you mentioned, Ca2+ (aq) + 2 OH- (aq) → Ca(OH)2 (s), is a precipitation reaction. Precipitation reactions involve the formation of a solid (called a precipitate) from two aqueous solutions.

In this case, the reactants are calcium ions (Ca2+) and hydroxide ions (OH-). When these ions are mixed in solution, they will react with each other to form a solid precipitate of calcium hydroxide (Ca(OH)2).

The process of precipitation occurs because the reaction results in the formation of an insoluble compound. In this case, calcium hydroxide is insoluble in water, so it will precipitate out of the solution as a solid.

The equation for this reaction shows that two hydroxide ions (OH-) combine with one calcium ion (Ca2+) to form one molecule of calcium hydroxide (Ca(OH)2). This means that for every mole of calcium hydroxide produced, two moles of hydroxide ions and one mole of calcium ions are required.

Overall, the reaction Ca2+ (aq) + 2 OH- (aq) → Ca(OH)2 (s) is an example of a precipitation reaction where two aqueous solutions combine to form a solid precipitate of calcium hydroxide.

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In many acid-base reactions, a starting material with a net Positive charge is usually an acid while a starting material with a net Negative charge is often a base.

In many acid-base reactions, a starting material with a net positive charge is usually an acid, while a starting material with a net negative charge is often a base. Acids are substances that can donate protons (H+) and are therefore positively charged when they lose a proton. Bases, on the other hand, can accept protons (H+) and tend to have a net negative charge when they gain a proton. This is based on the concept of proton transfer in acid-base reactions, where the acid donates a proton (positive charge) to the base, resulting in the formation of a new acid and base. It's important to note that not all acids or bases have a net charge, as their acidity or basicity can also be determined by other factors such as electron pair donation or acceptance.

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To determine the enthalpy and entropy of dissolving a compound, you need to measure the Ksp at multiple temperatures.

This allows you to analyze the relationship between temperature and solubility, and thus calculate enthalpy and entropy changes.

The Ksp, or solubility product constant, is an equilibrium constant that relates the concentrations of ions in a saturated solution of a compound to its overall solubility. By measuring the Ksp at various temperatures, you can obtain data points that help you understand how temperature affects solubility. The van't Hoff equation is commonly used to calculate the relationship between temperature, enthalpy, and entropy in the dissolution process. This equation is expressed as:

ln(Ksp) = -ΔH/RT + ΔS/R

In this equation, ΔH represents the enthalpy change, ΔS represents the entropy change, R is the gas constant, and T is the temperature in Kelvin. By plotting the natural logarithm of Ksp values against the inverse of the temperature (1/T), you can obtain a linear relationship. The slope of this line corresponds to the negative enthalpy change (-ΔH/R), and the intercept represents the entropy change (ΔS/R). From these values, you can calculate the enthalpy and entropy changes associated with the dissolution of a compound.

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Answer: does

Explanation: there is a force acting to make it in equillibrum

Adding ice to the liquid decreases the average kinetic energy of the particles of the liquid.

The temperature of a substance is defined as a measure of the average kinetic energy of the molecules of the substance. The average kinetic energy of the molecules of a substance is directly proportional to the temperature of the substance.

This implies that if I increase the temperature of a substance, the average kinetic energy of the molecules of the substance increases and vice versa.

Ice is at a lower temperature than water at room temperature. Thus, adding ice to water at room temperature decreases the temperature of the water and consequently decreases the average kinetic energy of its particles.

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Vanadium

Atleast i think so

The factory should use 384ml of their 50% sanitizer and add 216ml (600 - 384) of pure alcohol to achieve a 68% mixture.

To make a 68% solution of hand sanitizer, the factory needs to add pure alcohol to their current batch. First, we need to calculate the current amount of alcohol in the 600 ml bottle. The 50% solution means that there is 300 ml of alcohol in the bottle. To make the mixture 68%, we need to add more pure alcohol. Let's call the amount we need to add "x". The total volume of liquid in the bottle will then be 600 ml + x. To find x, we set up the equation:
300 ml + x = (68/100)(600 ml + x)
Simplifying, we get:
300 ml + x = 408 ml + 0.68x
Solving for x, we find that the factory needs to add 381 ml of pure alcohol to the 600 ml bottle. The factory's hand sanitizer has a 50% alcohol content. Let x be the amount of sanitizer to use: 0.5x ml of alcohol is present. The factory also needs to add pure alcohol (100% concentration), so we subtract x from 600ml: 600 - x ml of pure alcohol. The equation becomes: 0.5x + (600 - x) = 408. Solve for x: 0.5x - x = -192, -0.5x = -192, x = 384ml. The factory should use 384ml of their 50% sanitizer and add 216ml (600 - 384) of pure alcohol to achieve a 68% mixture.

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Answer:

0.086

Explanation:

got it on acellus

The mass of the dry solute recovered from the given data is 0.086 g.  Option C

To determine the mass of the dry solute recovered, we need to subtract the mass of the boat from the mass of the boat with the dry solute.

Given the data provided:

Boat Mass: 0.730 g

Boat + Solution: 0.929 g

Boat + Dry: 0.816 g

To find the mass of the dry solute, we subtract the boat mass from the boat + dry mass:

Mass of Dry Solute = (Boat + Dry) - (Boat Mass)

Mass of Dry Solute = 0.816 g - 0.730 g

Mass of Dry Solute = 0.086 g

Therefore, the correct answer is c) 0.086 g.

The mass of the dry solute recovered from the given data is 0.086 g. It is important to note that the mass of the dry solute is obtained by subtracting the mass of the boat from the mass of the boat with the dry solute, as the boat mass represents the weight of the empty boat or container used in the experiment.

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Answer:

The substances more alkaline than water are;

1) Spit, 2) Blood, 3) Hand Soap, and 4) Drain Cleaner

Explanation:

The diagram in the simulation displays a list of liquid substances, arranged from bottom to top in the order of increasing alkalinity.

The ph of water is 7.0

The ph of spit (saliva) is between 6.2 and 7.6

The ph of blood is about 7.4

The ph of hand soap is between 9 and 10

The ph of drain cleaner is between 12 and 14.

Answer:

circuit

electric current

voltage difference

ohms law

resistance ​

Explanation:

Circuit - a roughly circular line, route, or movement that starts and finishes at the same place.

Electric current - A net unidirectional movement of electrons, or other charge carriers, caused by a potential difference

Voltage difference - A potential difference of one Volt is equal to one Joule of energy being used by one Coulomb of charge when it flows between two points in a circuit.

Ohms law -a law stating that electric current is proportional to voltage and inversely proportional to resistance.

Resistance - The refusal to accept or comply with something; the attempt to prevent something by action or argument.

The weather in an area is affected mostly by interactions between solar radiation, Earth's large ocean, diverse landscapes and motion in space.

Temperature, pressure, wind, humidity, and precipitation are known as the elements of weather and these factors are fundamental to describe the weather and climate of a particular region.

Weather and climate are influenced by interactions involving sunlight,  ocean, atmosphere, ice, landforms and living things. These interactions change with latitude, altitude, and local and regional geography, and all of which can affect oceanic and atmospheric flow patterns.

Factors that combine to influence the weather are solar radiation, amount of which changes with Earth's tilt, orbital distance from sun and latitude, temperature, air pressure and abundance of water.

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The correct name for the molecule C₁₁H₂₄ is 3-ethyl-5-propylhexane (option B).

The molecule C₁₁H₂₄ consists of an eight-carbon chain (octane) with an ethyl group attached at the third carbon and a propyl group attached at the fifth carbon. This gives the molecule a total of eleven carbon atoms, which is why it is called an undecane. The formula C₁₁H₂₄ indicates that there are 24 hydrogen atoms in the molecule (2 for each carbon atom).

Since the molecule has two different types of substituent groups, it is named using the IUPAC system. The names of substituent groups are arranged alphabetically and preceded by a number that indicates the position of the group on the chain. In this case, the ethyl group is at the third position and the propyl group is at the fifth position. Therefore, the name of the molecule is 3-ethyl-5-propylhexane.

Your question is incomplete, but most probably your question was

C₁₁H₂₄

Which of the following is the correct name for the molecule above? group of answer choices

A. 3-ethyl-5-methyloctane

B. 3-ethyl-5-propylhexane

C. 4-methyl-6-ethyloctane

D. 2-propyl-4-ethylhexane

Thus, the correct option is B

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