When the volume of a closed container containing hydrogen gas is increased by a factor of two, how will this affect the number of hydrogen atoms in the container

Answers

Answer 1

We have that for the Question "When the volume of a closed container containing hydrogen gas is increased by a factor of two, how will this affect the number of hydrogen atoms in the container"

Answer:

Number of hydrogen atoms depend only on amount of gas which remains constant. Hence, increasing the volume of container has no affect on number of hydrogen atoms.

Explanation:

The number of hydrogen atoms will remain the same in the container. Because the container is closed and amount of hydrogen gas remains constant, which means that no extra amount of hydrogen gas is removed or added from the container when volume increases.

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Related Questions

How many moles of the excess reagent would there be if 2.8mol of N2 were reacted with 15.1mol of H2O?

N2+4H2O ---> 2H2O2+N2H4

Answers

The number of moles of the excess reagent there would be is 3.9 moles

From the question,

We are to determine the number of moles of the excess reagent there would be.

The given balanced chemical equation is

N₂ + 4H₂O → 2H₂O₂ + N₂H₄

This means,

1 mole of N₂ is required to react completely with 4 moles of H₂O

Now,

If 1 mole of N₂ is required to react completely with 4 moles of H₂O

Then,

2.8 moles of N₂ will react completely with 11.2 moles of H₂O

∴ H₂O is the excess reagent

Number of moles of H₂O that would remain = 15.1 mol - 11.2 mol

Number of moles of H₂O that would remain = 3.9 mol

Hence, the number of moles of the excess reagent there would be is 3.9 moles

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An exothermic reaction releases 86.5 kJ. How many kilocalories of
energy are released?

Answers

Since 1 calories is 4.1858 Joules, 86.5kJ is 86.5 x (1/4.1858) = 20.66510583 kCal = 20.7 kCal (3 s.f)

A \pu{1.60 g}1.60 g1, point, 60, space, g calcium supplement contains 37.8\%37.8%37, point, 8, percent \ce{Ca}CaC, a by mass. The calcium is present in the supplement as \ce{CaCO3}(s)CaCOX 3 ​ (s) (molar mass \pu{100.09 g/mol}100.09 g/mol100, point, 09, space, g, slash, m, o, l). How many grams of \ce{CaCO3}(s)CaCOX 3 ​ (s) are in the calcium supplement?

Answers

A 1.60 g calcium supplement that contains 37.8% Ca by mass, contains 1.51 g of CaCO₃.

We want to calculate the mass of CaCO₃ in a 1.60 g supplement. We need to consider the following relationships.

The mass percent of Ca is 37.8%, that is, there are 37.8 g of Ca every 100 g of supplement.The molar mass of Ca is 40.08 g/mol.The molar ratio of Ca to CaCO₃ is 1:1.The molar mass of CaCO₃ is 100.09 g/mol.

[tex]1.60gSup \times \frac{37.8gCa}{100gSup} \times \frac{1molCa}{40.08gCa} \times \frac{1molCaCO_3}{1molCa} \times \frac{100.09gCaCO_3}{1molCaCO_3} = 1.51gCaCO_3[/tex]

A 1.60 g calcium supplement that contains 37.8% Ca by mass, contains 1.51 g of CaCO₃.

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A 1.60 g calcium supplement contains 37.8% Ca by mass. The calcium is present in the supplement as CaCO₃(s) (molar mass 100.09 g/mol). How many grams of CaCO₃(s) are in the calcium supplement?

Compuesto organico que no existe como alqueno ni alquino?

Answers

Answer:

Susssssssssssssssy

Explanation:

Sup

An element with 3 valence electrons would be a
0-3 anion
0 + 3 anion
+3 cation
0 - 3 cation

Answers

Answer:

0+3 anion

Explanation:

Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that, through cellular respiration, can later be released to fuel the organism's activities.

Which object represents a heterogeneous
mixture

Answers

Answer:

oil and water

Explanation:

oil and water - When you put oil and water together they do not mix. Therefore, these are a heterogeneous mixture since they are two separate parts.


Why are coal, oil and natural gas called fossil fuels

Answers

From heat and pressure from the earth

A balloon contains 0.76 mol O2, 0.18 mol Ne, 0.031 mol Xe and 0.026 mol CO2 at 749 mm Hg. What is the partial pressure of Ne

Answers

Answer:

ans given below

Explanation:

To keep simplicity, let's assume these gases behave ideally so we can use the equations for ideal gas. One of these equation is the Raoult's Law written below.

P* = xP

This is another form of the Raoult's Law where x is the mole fraction. Let's find x for O2.

x = 0.18/(0.76+0.18+0.031+0.026) = 0.1805

Partial Pressure = (0.1805)(749 mmHg) = 135.23 mmHg

Someone please help? I've had a go at this myself (see picture of working attached) but not sure where to go from there?

75ml of a solutipn of 0.1mol l-1 NaOH neutralises 25ml of a solution of an acid. The formula of the acid is HxA and the concentration of the acid is 0.1mol l-1. What is the value of x?​

Answers

Answer:

75 ml of 0.1M  base neutralizes 25 ml of 0.1M acid, which means the acid has 0.3 moles/L of H ion

but that means each molecule of the acid has 3 times as many H ions aH ions in a molecule of NaOH

which means the formula for the acid must be H3A and

the value of x in

HxA is 3

Explanation:

75ml of a solutipn of 0.1moL  l-1 NaOH neutralises 25ml of a solution of an acid. The formula of the acid is HxA and the concentration of the acid is 0.1mol l-1. What is the value of x?​

the concentration of both the and the base are the same at 0.1M

the base...NaOH has 0.1 moles/L of OH ion

75 ml of 0.1M  base neutralizes 25 ml of 0.1M acid, which means the acid has 0.3 moles/L of H ion

but that means each molecule of the acid has 3 times as many H ions aH ions in a molecule of NaOH

which means the formula for the acid must be H3A and the value of x in

HxA is 3

The small flag indicating wind direction on a station weather plot points in the direction that the wind is going.

True or False

Answers

Answer:

False

Explanation: The wind's direction is shown by a long shaft. it will point to the direction from which direction the wind is blowing.

False is the true answer

The reaction is: Fe2O3 (s) + 2Al (s) → 2Fe (l) + Al2O3 (s)

What mass, in grams, of iron (III) oxide reacted to produce 4.5 mol of Al2O3 ???

Answers

Answer:

718.6 gm

Explanation:

The reaction is: Fe2O3 (s) + 2Al (s) → 2Fe (l) + Al2O3 (s)

What mass, in grams, of iron (III) oxide reacted to produce 4.5 mol of Al2O3

1 mole of Fe2Os produces 1 mol of Al2O3

so 4.5 mols Fe2O3 would produce 4.5 mols Al2O3

the molecular mass of Fe2O3 is

(2 X 55.85) + (16 X 3) =

111.7 + 48 =

159.7

4.5 mols Fe2O6 weighs

4.5 X 159.7 =

718.6 gm

check:

718.6 gm of Fe3O2

Pls answer.............

Answers

Answer:

Ductile

Explanation:

The metal is ductile, and that is why it can be stretched into wires.

element Q,X, and Z are in the same group on the periodic table and are listed in order of increasing atomic number.The melting point of element Q is -219 Celsius and the melting point of element Z is -7 celsius. Which temperature is closest to the melting point of element X

Answers

Answer:

Very low ionization energy: metal bonds easily: group 1, or maybe 2 low melting.

Explanation:

1. Assume samples that emit radiation are placed on a table across the room. Which sample will produce the greatest damage to you? Alpha emitter Beta emitter? Gamma emitter? WHY?

Answers

TLDR: A beta emitting sample will likely produce more damage than a gamma emitting sample due to the associated quality factors. An alpha emitting sample will do zero damage.

A question like this is quite nuanced, so let’s dive in.

Radiation that is made of charged particles (like alpha and beta) behave differently than radiation that is made up of neutral particles (like gamma). Charged particles are characterized by their “range”, which describes how far that particle can go through a medium (like air) before they lose their kinetic energy and become harmless. Alpha particles are relatively heavy and have a range of 1-10 cm in air at atmospheric pressure, so a sample that is an alpha emitter placed on the opposite side of the room will have exactly zero potential of dealing damage to you. You’re simply too far away. For a beta emitter, the range of beta particles is about 4 meters per MeV (a measure of the particle’s energy). This means that a low energy beta can reach you from across the room, and higher energy betas can easily reach you.

Neutral particles are not characterized by ranges, as they interact with matter differently. Instead, they are characterized by “half-thicknesses” based on an exponential attenuation function. The half-thickness of a material is the thickness of the material needed to reduce the intensity of the gamma rays to one-half the original intensity. Because of this, a gamma emitting sample will easily be able to affect you just like a beta sample would be. We now have to use something else to determine which will be worse.

In radiative studies, there exists a parameter for radiation types called the “quality factor”, which adjusts the value for radiation doses to account for the biological impact of each type of radiation. For example, if you were exposed to two different types of radiation with the exact same dose but one had a quality factor of one and the other had a QF of ten, then the radiation with a QF of ten did essentially ten times more damage than the other. Gamma rays have a quality factor of 1, whereas beta rays can have a QF anywhere from 1-20 based on their energy (higher energy = higher QF). Because of this, the beta emitter will likely do more damage than the gamma emitter.

Hope this helps!

The damage caused by the radiations has been maximum for the gamma radiations.

What are charged radiations?

The charged radiations are comprised of the molecules that have been comprised of the charged particles. The charged particles have been alpha, beta or gamma radiation.

The damage that has been caused by the radiation has been found with the intensity of the quality factor and the thickness of the molecule that comprises the amount of damage formed.

The maximum quality factor has been for the gamma radiation. Thus, gamma radiations form the basis for the maximum damage.

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what is the functional group and homologous series of ethyl butyrate?​

Answers

Answer:

Functional group: ROR'

Homologous series: ester [C6H12O2]

Mark brainliest please

the experimental grip

which of the following substances will cross the cell membrance through osomosis

Answers

Answer:Water, carbon dioxide, and oxygen are among the few simple molecules that can cross the cell membrane by diffusion (or a type of diffusion known as osmosis ).

Explanation:

What is the mole ratio between FeCl3 and Fe(C5H7O3)3 ?

Answers

Answer:      162.2 g FeCl3. mL of soln = 0.07028 mol FeCl3x ... mol FeCl3 = mol Fe(OH)3 = 0.01291 mol ... (a) MaVa = MbVb since HCl and KOH react in a 1:1 molar ratio.

Explanation:

Read the etymology entry.
antagonize
antagonize (v.) 1630s, "to compete with" (obsolete); 1742, "act in opposition to, struggle against continuously,"
from Greek antagonizesthai "to struggle against, oppose, be a rival," from anti "against" (see anti-) + agonizesthai
"to contend for a prize," from agon "a struggle, a contest" (see agony). Meaning "make antagonistic" is by 1882.
What original language did the word antagonize come from?
O Greek
O Latin
O Middle French
O Middle English

Answers

Answer:

latin

Explanation:

im not sure sorry if wrong

Answer:

Greek

Explanation:

Mid 17th century (in the sense 'compete with'): from Greek antagōnizesthai, from ant- 'against' + agōnizesthai 'struggle' (see agonize).

The molarity of an aqueous solution of CaCl is defined as the

Answers

Answer:

Molarity of aqueous solution of CaCl2 can be defined as moles of CaCl2 per litre of solution

What happened a when you try to layer a more-dense solution on top of a less-dense solution

Answers

Answer:

the more dense solution will sink to the bottom the less dense solution will go to the top

Answer:

Explanation:The density of a liquid determines whether it will float on or sink in another liquid. A liquid will float if it is less dense than the liquid it is placed in. A liquid will sink if it is more dense than the liquid it is placed in.

Density of a liquid determines how it will layer (heaviest to lightest). If the liquid us least dense it float to the bottom. Layers will remain separated because each liquid is actually floating on top of the more dense liquid beneath it.

A unit for measuring work is called the _____.

horsepower
effort
time
foot-pound

Answers

Answer:

A unit for measuring work is called the foot-pound

What type of energy is best described as the energy required to break the bonds present in the reactants?
A
activation energy
B
potential energy
С
kinetic energy
D
thermal energy
hay

Answers

Answer:

b

Explanation:

Haty

The energy required to break the bond in the reactants is activation energy .

Hence, option (A) is correct answer.

What is Exothermic Reaction ?

The chemical reaction which releases energy are known as exothermic reaction. Bond forming is exothermic process. Activation energy is needed to initiate the reaction. In exothermic reaction potential energy converted into kinetic energy.

What is Endothermic Reaction ?

The chemical reaction which absorbs heat from the surrounding is known as endothermic reaction. Bond breaking is endothermic reaction.  Activation energy is needed to initiate the reaction. In endothermic reaction kinetic energy converted into potential energy.

Thus, from the above conclusion we can say that The energy required to break the bond in the reactants is activation energy .

Hence, option (A) is correct answer.

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#SPJ2

what i compound is
FeI2

Answers

Answer:

iodide

Explanation:

Answer:

Iron(II) iodide

Explanation:

What happens to the pH of a solution is the concentration of hydronium ions decrease

Answers

If the hydronium concentration decreases, the pH increases, resulting in a solution that is less acidic and more basic

can someone please help me i need this done rn

Answers

Does your teacher know your cheating
Ur spamming the answer thing lol

Convert 21 grams of radon into atoms of radon.

Answers

Answer:

The atomic mass of radon is 222.

Explanation:

. That means that one mole of radon weighs 222 grams (222 grams/moles). We can therefore make the following equation:

Grams × (1/222) = Moles of Radon

what are the products of the reaction: Be(s)+ Cl2(g)⟶

Answers

Answer:

BeCl2

Explanation:

Be+Cl2=BeCl2

Mixture of a 25.00 mL aliquot of the sample solution with 5.00 mL of a 0.250 ppm warfarin standard yielded a solution with an intensity of 670. Calculate the percentage of warfarin in the sample.

Answers

Answer:

750

Explanation:

how do you separate the following mixture? Name only the process involved .
1.Sand and salt ​

Answers

Answer:

Just dissolve in water , you can separate

Explanation:

because salt dissolves in water but sand doesn't

Explanation:

sedinentation and decantation

Which of the following corresponds to an alpha particle?
A. 1/4He
B. 3/2He
C. 2/2H
D. 4/2He

Answers

Answer:

D. 4/2 He corresponds to an alpha particle.

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