If one mole of nitrogen is used how many liters of hydrogen are needed

Answer:

plato is the answer

Explanation:

that what i think it it is

Answer:

Explanation:

Since salt is composed of two ions Na+ and Cl- it will attract to the opposite poles of the water and form a ion-dipole bond. This will cause the phenomenon freezing point depression where as the name states it will take a lower tempertature to freeze it. So instead of freezing at 0 degrees c it will freeze at a negative 2 or so on.

The salt ions end up slowing the growth of ice as the water molecules re-freeze.

Freezing point depression can be defined as the decreasing of the freezing point of pure solvents upon the addition of different kinds of solutes.

Depression in the freezing point can be defined as a colligative property that is proportional to the molality of the solution.

As liquid water gets colder and colder, the motions of water molecules become slower and slower. When salt is added to water, the saltwater solution is composed of both water molecules and dissolved salt ions.

As a result, salt ions can easily replace some of the water molecules. Saltwater freezes more slowly than pure water due to many of the water molecules would be "crashing" into the ice's surface in pure water and are replaced by salt ions.

Therefore, the salt water will freeze at a lower temperature than the pure water.

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Answer:

2.1 atm

Explanation:

We are given the following variables to work with:

Initial pressure (P1): 2.5 atm

Initial temperature (T1): 320 K

Final temperature (T2): 273 K

Constant volume: 7.0 L

We are asked to find the final pressure (P2). Since volume is constant, we want to choose a gas law equation that relates initial pressure and temperature to final pressure and temperature. Gay-Lussac's law does this:

[tex]\frac{P_{1}}{T_1} =\frac{P_{2}}{T_2} \\[/tex]

We can rearrange the law algebraically to solve for [tex]P_{2}[/tex].

[tex]{P_{2}} =\frac{(T_2)(P_{1} )}{T_1} \\[/tex]

Substitute your known variables and solve:

[tex]P_2 = \frac{273K(2.5atm)}{320K} = 2.1 atm[/tex]

Explanation:

12 hours ago

El ácido sulfúrico H2SO4 es uno de los compuestos que se utiliza para la producción de fertilizantes como el nitrosulfato amónico. Si disponemos de 8 mL de H2SO4 al 37 %P/P (d=1,26 g /mL), los cuales se disolvieron hasta alcanzar un volumen de solución de 400 mL, con una densidad de 1,08 g/mL. (La densidad del soluto es corresponde a 1,83 g/cm³)

Answer:

This is not a chemical change

Explanation:

The dark green solution mixed with the water, but the water is still water. There were no bubbles, smell, temperature change, or any other signs of a chemical change

Have a great day!

A student mixes a dark green solution with water, and the result is pale green. This is a physical change.

Composition distinguishes a physical change from a chemical change. A physical change is a difference inside the look, smell, or straightforward presentation of a material sample without the need for a change in composition, whereas a chemical change alters the makeup of the substances in issue.

Despite the fact that we refer to them as physical "reactions," nothing is actually changing. A change in the substance in question's elemental composition is necessary for a reaction to occur. So, from now on, we will simply refer to bodily "reactions" as physical changes. A student mixes a dark green solution with water, and the result is pale green. This is a physical change.

Therefore, a student mixes a dark green solution with water, and the result is pale green. This is a physical change.

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Explanation:

Since methane gas is at 1 atm and 273 K, it is at standard temperature and pressure(STP).

One mole of every gas occupies 22.4 dm^3 at STP, and vice versa. So,

22.4 dm^3 at STP of CH4=1 mol=12+4(1)=16 g

0.462 L(0.462 dm^3) at STP of CH4

=(16 g×0.462 dm^3)/22.4 dm^3

=0.33 g

Answer:

For Feo is 2+

For Fe2O3 is 3+

Btw I did it and got it right!

Explanation:

The charge of the Fe ion in the compound [tex]\rm FeO[/tex]is +2 and the charge of the Fe ions in the compound [tex]\rm Fe_2O_3[/tex] is +3, respectively.

Ion can defined as any atom or molecule having positive or negative charge on it.

In [tex]\rm FeO[/tex]: In the compound, oxygen is in group 16 and has a charge of -2, the iron ion must have a charge of +2 to balance the charges and make the compound neutral.

In [tex]\rm Fe_2O_3[/tex]: In the compound, oxygen is in group 16 and has a charge of -2, the three oxygen atoms in [tex]\rm Fe_2O_3[/tex] contribute to a total charge of -6. To make the compound neutral, the two iron ions must have a total charge of +6. Therefore, each iron ion must have a charge of +3 to balance the charges and make the compound neutral.

Therefore, Fe ion has a charge of +2 in the compound [tex]\rm FeO[/tex] and has a charge of +3 in the compound [tex]\rm Fe_2O_3[/tex].

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Answer: The partial pressure of the dry gas is 599.8 torr

Explanation:

According to Dalton's law, the total pressure is the sum of individual pressures.

[tex]p_{total}=p_{dry gas}+p_{H_2O}[/tex]

Given : [tex]p_{total}[/tex] =total pressure of gases = 642 torr

[tex]p_{dry gas}[/tex] = partial pressure of dry gas = ?

[tex]p_{H_2O}[/tex] = partial pressure of water = 42.2 torr

putting in the values we get:

[tex]642torr=p_{\text {dry gas}}+42.2torr[/tex]  

[tex]p_{\text {dry gas}}=599.8torr[/tex]

Thus the partial pressure of the dry gas is 599.8 torr

Answer:

I think gamma, I'm not sure tho

Answer:

chemical energy to  kinetic energy

Explanation:

Answer:

A. Chemical energy to kinetic energy and gravitational potential

energy

Explanation:

Answer:

575 g

Explanation:

1 kg of sodium hydroxide is 1000/40=25 mol.

So 25 mol of sodium will be needed.

25 mol of sodium is 575 g.

According to the stoichiometry of the given chemical equation, 575 g s of sodium would be needed to produce 1.00 kg of sodium hydroxide.

Chemical equation is a symbolic representation of a chemical reaction which is written in the form of symbols and chemical formulas.The reactants are present on the left hand side while the products are present on the right hand side.

A plus sign is present between reactants and products if they are more than one in any case and an arrow is present pointing towards the product side which indicates the direction of the reaction .There are coefficients present next to the chemical symbols and formulas .

The first chemical equation was put forth by Jean Beguin in 1615.By making use of chemical equations the direction of reaction ,state of reactants and products can be stated. In the chemical equations even the temperature to be maintained and catalyst can be mentioned.

46 g sodium gives 80 g sodium hydroxide, thus 1000 g sodium hydroxide requires 46×1000/80=575 g sodium.

Thus, 575 g s of sodium would be needed to produce 1.00 kg of sodium hydroxide.

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Answer:

3(NH4)2S + 2AlCl3 → 6NH4Cl + Al2S3

Explanation:

Firstly, ammonium sulfide has a chemical formula of (NH4)2S while aluminum chloride has a chemical formula of AlCl3. These two chemical substances react as follows:

(NH4)2S + AlCl3 → NH4Cl + Al2S3

This chemical equation is however, unbalanced. To balance the chemical equation, one has to ensure that the atoms of each element on both the reactant and product side equates with one another.

If we carefully observe each atom on both the reactants and product side, we will have the following balanced equation:

3(NH4)2S + 2AlCl3 → 6NH4Cl + Al2S3

That is;

- 6 moles of N and Cl on both sides

- 24 moles of H on both sides

- 3 moles of S on both sides

- 2 moles of Al on both sides

Answer:

All the elements on the periodic table start with a capital letter and only some of them have a second letter that is lower case. So if you see two capital letters together in a ion then you will know that it is a polyatomic.

Answer: All the elements on the periodic table start with a capital letter and only some of them have a second letter that is lower case. So if you see two capital letters together in a ion then you will know that it is a polyatomic.

Explanation:

Answer: hydrogen

Explanation:

Answer:

I would say the answer is D

Explanation:

Answer:

9.15 atm

Explanation:

Ideal gas equation of state PV=nRT

P in hPa, V in L, n in mol, R is a constant which is 83.1 hpa*L/mol*k, T in kelvin.

Plug in all the number, and we will get:

P*6.21=2.02*83.1*343

P =9271.6(in hpa)=9.15 atm

Answer:

Crater size is related to the mass and velocity of the impacting body. Mass and velocity can be combined to find the kinetic energy of an impactor. ... This fundamental physical relationship allows an estimate of impactor mass to be made from crater diameter.

Explanation:

1- Base substitutions.

2- Deletions.

3- Insertions.

Answer:

Percentage of Ba in the compound is 19.5%

Explanation:

Answer:

If it has to do with heat, it's thermal. ... The Greek word therme, meaning “heat,” is the origin of the adjective thermal. Something that is thermal is hot, retains heat, or has a warming effect.

Explanation:

hope it helps :)

Answer:

The lithosphere is the solid, outer part of the Earth. The lithosphere includes the brittle upper portion of the mantle and the crust, the outermost layers of Earth's structure. It is bounded by the atmosphere above and the asthenosphere (another part of the upper mantle) below

Explanation:

They are, in order from the exterior to the interior – the crust, the mantle, the outer core, and the inner core.

Answer:

1s2  2s2  2p6  3s2  3p6  3d10 4s2  4p6  4d10

Explanation:

To write the configuration for the Silver and the Silver ion, first we need to write the electron configuration for just Silver (Ag).  We first need to find the number of electrons for the Ag atom (there are 47 electrons) using the Periodic Table.   When we write the configuration, we'll put all 47

Either way,  the Silver  electron configuration will be 1s2  2s2  2p6  3s2  3p6  3d10 4s2  4p6  4d10  5s1    

Note that when writing the electron configuration for an atom like Ag and Ag+, the 4d is usually written before the 5s.   Both of the configurations have the correct numbers of electrons in each orbital, it is just a matter of how the electronic configuration notation is written (see below for an explanation why).

For the Ag+, called the Silver ion,  we remove one electron from 5s2 leaving us with:

1s2  2s2  2p6  3s2  3p6  3d10 4s2  4p6  4d10

Answer: 219 kJ

Explanation:

Answer:

2.8 m

Explanation:

:)

Answer:

LiCl because the total negative charge on Cl is one.

Explanation:

Lithium has a charge of 1+ and Chlorine has a charge of 1-.

There are two types of chemical compound one is covalent compound and other is ionic compound. LiCl because the total negative charge on Cl is one. The correct option is option A.

Chemical Compound is a combination of molecule, Molecule forms by combination of element and element forms by combination of atoms in fixed proportion.

Covalent compound formed by sharing of electron and ionic compound formed by complete transfer of electron. Ionic compounds are hard, these have higher melting and boiling point than the covalent compounds. Li act as cation Li⁺ and Cl act as Cl⁻. These two combine to form LiCl. LiCl is an ionic compound.

Therefore, LiCl because the total negative charge on Cl is one. The correct option is option A.

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Answer:

i would assume i mean who has cold farts

Explanation:

Yes, farting is an example of an exothermic reaction.

A reaction that is chemical in nature and is characterized by the release of energy in the form of heat or light is called an exothermic reaction.

Farting is a normal part of digestion that reflects the activity of the bacteria in your gut.

Yes, farting is an example of an exothermic reaction.

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Answer:

The primary reason is that the sun is low on the horizon all day. Thus, solar energy needs to pass through more atmosphere to get to the ground.

Explanation:

Hope this helps. :)

Answer:

Most all of the visible light striking the snow or ice surface is reflected back without any particular preference for a single color. Most natural materials absorb some sunlight, which gives them their color. Clean snow, however, reflects most of the sunlight, creating a white appearance.

[ I commented on the other answer with the same little add-on, then I realised I could add an answer. Even though this is four days ago, meaning the person who asked the question doesn't need another answer, I hope to give someone else who might be looking at this some insight. ]