The number of moles of XeF4 that can be created would be 0.5 moles.
From the equation of the reactiobn:
Xe (g) 2 F₂ (g) ---> XeF₄ (g)
The mole ratio of Xe to F2 is 1:2. Hence, in the presence of 1 mole Xe and 1 mole F2, F2 would be limiting the reaction.
This means that the amount of F2 would determine the amount of XeF4 that would be produced from the reaction.
The mole ratio of F2 to XeF4 according to the equation is 2:1. This means that for every 1 mole of F2 introduced into the reaction, 0.5 moles of XeF4 will be produced.
In this case, 1 mole of F2 is introduced. Thus, the mole of XeF4 that would be produced would be:
1/2 = 0.5 moles.
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in what area of the united states do the fewest people live
Answer:
The most populous state in the United States is California, which has 37,253,956 inhabitants. On the other hand, the least populated state is Wyoming with 493,782 inhabitants.
Answer: Alaska. Alaska is by far the least densely populated of the US states and has 1.3 persons per square mile.
Explanation:
Hope it helped .
How many moles of methane are produced when 25. 1 moles of carbon dioxide gas react with excess hydrogen gas.
Answer:
25.1 moles
Hence it can be seen that when 25.1 moles of carbon dioxide gas react with excess hydrogen gas, 25.1 moles of methane gas are produced.
_ is the process in which an element spontaneously transforms into another isotope of the same element, or into a different element.
Answer:
Nuclear transmutation
Explanation:
The process in which an element spontaneously transforms into another isotope of the same element, or into a different element is called nuclear transumutation. It occurs when the number of protons or neutrons in the nucleus of an atom is changed.
How to determine intermolecular forces.
Answer:
Incase you have H and F and another H and F
Why is partial pressure of oxygen greater at lower levels in water.
Answer:
Therefore, the partial pressure of oxygen at high altitudes is less than at sea level.
Explanation:
The deep ocean thus has higher oxygen because rates of oxygen consumption are low compared with the supply of cold, oxygen-rich deep waters from polar regions. In the surface layers, oxygen is supplied by exchange with the atmosphere.
What is the frequency of yellow light, which has a wavelength of 5.56 x 10^-7 m?
O A) 5.40 x 10^14 m/s
O B) 5.40 x 10^14 Hz
O C) 1.85 x 10^15 m/s
O D) 1.85 x 10^15 Hz
The frequency of yellow light, which has a wavelength of 5.56 x 10^-7 m is 5.40 x 10^14 Hz. Therefore, option B is correct.
What do you mean by wavelength ?The distance between identical points (adjacent crests) in adjacent cycles of a waveform signal propagated in space or along a wire is defined as the wavelength. This length is typically specified in wireless systems in meters (m), centimeters (cm), or millimeters (mm) (mm).
The wavelength is the distance between two wave crests, and it is also the distance between two wave troughs. The frequency is measured in cycles per second (Hz) and is the number of vibrations that pass over a given spot in one second (Hertz).
Speed is distance over time, Therefore, v = λ / T.
The frequency, f, is 1/T, so the equation relating wave speed, frequency, and wavelength is v = c / λ .
Given :
Wavelength = 5.56 x 10^-7 m
Frequency = ?
Speed (c) = 3 × 10⁸m/s
v = c / λ
By substituting given values in equation and we get,
v = 3 × 10⁸ / 5.56 x 10^-7
= 5.40 x 10^14
The frequency of yellow light is 5.40 x 10^14.
Thus, option B is correct.
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what word describes when tiny droplets of one liquid are finely dispersed within another liquid?
When tiny droplets of one liquid are finely dispersed within another liquid it is called emulsion.
Emulsion can be defined as the process by which two liquids that are not miscible come together to form a mixture.
The emulsion mixture usually consists of an oil phase and a water phase.
The oil phase appears as droplets when dispersed (mixed with) the water phase.
The uses of emulsion include:
It is used in chemical industries for production.It is used for production of medicine.Digestion of fatty food components in the intestine takes place through the process of emulsion.Learn more here:
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the distance between two successive peaks is called
The predicted yield for a reaction was 10g of product. If the percentage yield for this reaction was 50%, how much product was formed?
The quantity of the product that was formed was 5g
From the question,
We are to determine the quantity of product formed. That is, the actual yield.
Using the formula
[tex]Percentage \ yield =\frac{Actual \ yield}{Theoretical\ yield} \times 100\%[/tex]
From the given information
Theoretical yield = 10g
Percentage yield = 50%
Putting the parameters into the formula, we get
[tex]50\% = \frac{Actual\ yield}{10} \times 100\%[/tex]
Then,
[tex]50\% = Actual\ yield \times 10\%[/tex]
∴ Actual yield = [tex]\frac{50\%}{10\%}[/tex]
Actual yield = 5g
Hence, the quantity of the product that was formed was 5g
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How does transfer of infrared energy relate to weather and climate conditions on Earth?
Answer:
Convection is the transfer of heat energy in a fluid. Air in the atmosphere acts as a fluid. The sun's radiation strikes the ground, thus warming the rocks. As the rock's temperature rises due to conduction, heat energy is released into the atmosphere, forming a bubble of air which is warmer than the surrounding air.
determine the element of lowest atomic number that contains a complete d subshell in the ground state.
Answer:
The element with the lowest atomic number that contains a complete d-subshell in the ground state is copper.Source:
Determine the element of lowest atomic number that contains a complete d subshell in the ground... - Study.comWhat is the name of the zone of life on earth ?
a . atmosphere
b . biosphere
c . lithosphere
d . magnetosphere
Answer:
B. Biosphere
Explanation:
How does the current flow affect pressure.
Answer:
when less water is flowing
Can someone please help me with these questions? I put them on here and some keep getting taken down. I need help asap!
Answer the following questions in complete sentences.
Why do you think that you had to use a thin layer of onion skin, rather than a thick layer for the microscope?
When iodine reacts with starch, it produces a blue-black color. Starch is a white substance which plants use to store food. What structure did you see better because of the iodine? Why did you see this structure better?
From low power to high power, what structures became clearer in the unstained onion tissue?
From low power to high power, what structures became clearer in the stained onion tissue?
What is the shape of an onion cell?
Ques.1: Why do you think that you had to use a thin layer of onion skin, rather than a thick layer for the microscope?
Ans:- It is because, I the onion peel is thick layered, then it will be hard or impossible to see through the microscope.
Ques.2: When iodine reacts with starch, it produces a blue-black color. Starch is a white substance which plants use to store food. What structure did you see better because of the iodine? Why did you see this structure better?
Ans: Amylose in starch is responsible for the formation of a deep blue color in the presence of iodine. The iodine molecule slips inside of the amylose coil.
This makes a linear triiodide ion complex with is soluble that slips into the coil of the starch causing an intense blue-black color.
Due to this, we can see the structure better.
Ques.3: From low power to high power, what structures became clearer in the stained onion tissue?
Ans: From lower to higher power, we can see:-
-- Large, rectangular interlocking cells,
-- Clearly visible distinct cell walls surrounding the cells,
-- Dark stained nucleus,
-- Large vacuoles at the center,
-- Small granules may be observed inside the cells (within the cytoplasm)
Ques.4: What is the shape of an onion cell?
Ans: The shape of an onion cell is rectangular or square in shape.
For the reaction, calculate how many moles of the product form when 0.046 mol of O2 completely reacts.
Assume that there is more than enough of the other reactant.
2Ca(s)+O2(g)→2CaO(s)
Express your answer using two significant figures.
Answer: 0.023 moles of CaO.
Explanation:
The balanced equation tells us that we'll get 2 moles of CaO for every one mole of O2. Since we have 0.046 moles of O2, we'll get 0.023 moles of CaO. (2 sig figs)
What are the two ways in which cellular processes can be regulated?
Answer:
Homeostasis to photosynthesis and anaerobic respiration to aerobic respiration.
mr. garcia uses magnets to hold a poster on a steel filing cabinet because a main component of steel is iron. carbon. plastic. glass.
Mr. garcia uses magnets to hold a poster on a steel filing cabinet because a main component of steel is iron.
What is iron?The chemical element iron has the atomic number 26 and the symbol Fe. It is a metal that is found in group 8 of a periodic table and the first transition series. It makes up a large portion of the planet's outer or inner core and is the most prevalent element on Earth by mass, just ahead of oxygen.
It is the fourth most prevalent element in the crust of the Earth, having been mostly deposited by meteorites inside its metallic state, along with its ores. Iron ores must be processed in kilns or furnaces that may reach 5000 °C (2,730 °F) and higher, which is approximately 500 °C (932 °F) greater than the temperature needed to smelt copper. Mr. garcia uses magnets to hold a poster on a steel filing cabinet because a main component of steel is iron.
Therefore, mr. garcia uses magnets to hold a poster on a steel filing cabinet because a main component of steel is iron.
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I need the answer of these questions
Answer:
36. B, LATTICE
35. A, COVALENT
38. B, TRIPLE COVALENT
Explanation:
36: Lattice- Sodium chloride is taken as a typical ionic compound.
35. covalent - the interatomic linkage that results from the sharing of an electron pair between two atoms. The binding arises from the electrostatic attraction of their nuclei for the same electrons.
38. TRIPLE COVALENT- because each nitrogen atom needs three electrons to fill its outermost shell.
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I hope it help
why are water-soluble vitamins less likely to be toxic compared to fat-soluble vitamins?
Answer:
Water-soluble vitamins are not stored in the body and are excreted in the urine quickly. Unlike water-soluble vitamins, fat-soluble vitamins are dissolved in fat and an excess of them would lead to toxicity if consumed in large amounts because it would lead to rancidity, and they are not easily excreted by urine like water-soluble vitamins.
Even when consumed in high doses, water-soluble vitamins are less likely to create problems since they are eliminated through urine rather than stored.
What are vitamins?Vitamins are defined as a collection of molecules required for healthy cell growth, development, and function. While some vitamins support healthy neurons and infection resistance, others may aid in correct blood clotting or food energy absorption.
Water-soluble vitamins are promptly eliminated in the urine and are not retained by the body. In contrast to water-soluble vitamins, which are easily eliminated by urine, fat-soluble vitamins are dissolved in fat. If ingested in excess, they can be harmful due to rancidity and cannot be easily expelled through urine.
Thus, even when consumed in high doses, water-soluble vitamins are less likely to create problems since they are eliminated through urine rather than stored.
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please guys help me with number 1
Answer:
Paracetamol
Formula
C8H9NO2
Se dispone de un recipiente de 60 litros que contiene un gas de 1,64 atm y a una temperatura de 100K ¿Cuántos moles de gas hay? *
En este caso, dado que se describe un gas del que se conoce el volumen (60L), la presión (1.64 atm) y la temperatura (100K), es posible usar la ecuación del gas ideal para calcular los moles que hay presentes a estas condiciones:
[tex]PV=nRT[/tex]
Ahora, despejamos las moles del gas como sigue:
[tex]n=\frac{PV}{RT}[/tex]
Finalmente, reemplazamos los valores dados, teniendo en cuenta que R es 0.08206 en atmosferas, litros y Kelvin:
[tex]n=\frac{1.64atm*60L}{0.08206*100K}\\\\n=11.8mol[/tex]
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https://brainly.com/question/15890754 https://brainly.com/question/22946811pls help! Two galaxies on opposite ends of the universe are moving away from the Earth. Each has a velocity of 200,000 km/s relative to the Earth. How fast would an observer in one of those galaxies see the other galaxy moving away?
A.200,000 km/s
B. between 300,000 and 400,000 km/s
c. between 200,000 and 300,000 km/s
D. 400,000 km/s
An observer in one of those galaxies see the other galaxy moving away at 400000 km/s.
Relative velocity is the velocity of an object with respect to another object, that is the time rate of change of relative position of one object with respect to another object.
Since two galaxy are moving in opposite directions with a velocity of 200,000 km/s. Hence the relative velocity between the two galaxies is 400000 km/s (200000 + 200000)
Therefore an observer in one of those galaxies see the other galaxy moving away at 400000 km/s.
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Answer:
D 400,000km/s
Explanation:
Draw the structure of the product that is formed when the compound shown below undergoes a reaction with 1 equivalent of ch3mgi and then is treated with water.
When the compound shown is treated CH3MgI followed by water, 1,3 - cyclohexadienol is formed.
Grignard reagent is an alkylmagnesium halide. Grignard reagents are important synthetic tools in chemistry. They are used to synthesize and number of compounds in the laboratory.
When the Grignard reagent, CH3MgI is reacted with compound shown followed by treatment with water, the product of the reaction is 1,3 - cyclohexadienol whose structure is shown in the second image attached to this answer.
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what is the ka for 0.03M Solution of HClO4 for 1.90 PH value.
A) 7.2x10^-3
B) 8.27x10^-3
C) 8.27x10^-4
D) 6.27x10^-4
(I keep getting 5x10^-3 when I round all the values to 2 decimal places but it’s not in the options)
What is a quick way to determine how many energy levels an element possesses?
A.
Divide the element's atomic number by eight.
B.
Find the element's group number on the periodic table.
C.
Find the element's period number on the periodic table.
D.
Divide the element's atomic mass by eight.
Answer:
c
Explanation:
just got this question
Which of the following element has more than one valence number. A.gold,b.iron,c.silver,d.aluminum
Answer:
iron
iron has +2 valancy
Answer:
C silver
Explanation:
silver have high quantity load that passes through magnesium towards overload despised everything happens through magnetic century.Oxygen and Oxygen Ionic or Covalent? Defense how do you know
Answer:
oxygen are covalent bonds because they require 2 more electrons to obtain their octet shell
so when they combine with any other element, they form a covalent bond
Explanation:
Oxygen requires two shared electrons to fill its outermost shell therefore to covalent bonds form.
Help ASAP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!:)
Correct:
Delivers Nutrients to cells Removes waste materials from cellsProtects the body from pathogensHelps cuts and wound to heal.Incorrect:
Brings carbon dioxide to cells for use.Carbon dioxide is the waste product of cells that you let out each time you breathe.
10 liters of liquid CCl4 has density of 1.59 g/cm3. What is the mole of CCl4?
[tex]\huge\color{pink}\boxed{\colorbox{Black}{♔︎Answer♔︎}}[/tex]
[tex] \huge\blue{Given}[/tex]
molar mass of CCl4 = 154
density = 1.59 g/cm³
volume = 10 liters
[tex]\huge{\color{magenta}{\fbox{\textsf{\textbf{Solution}}}}}[/tex]
[tex]mass = \frac{density}{volume} \\ mass = \frac{1.59}{10 \times 1000} \\ mass \: = \: 1.59 \times {10}^{ - 4} \\ \\ moles = \frac{mass}{molar \: mass} \\ moles = 0.01 \times {10}^{ - 4} [/tex]
When a certain isotope, such as Pa-231, is hit by a neutron, it will always split into the same smaller nuclei.
true or false
Answer: false
Explanation: