A large balloon is initially filled to a volume of 11.2 L at 325 K and a pressure of 3450 mm Hg. What volume of gas will the balloon contain at 1.4 atm and 325 K?

The formula for ammonium dichromate is (NH4)2Cr2O7. The number of atoms in this compound is 36 .

What is atom?

An atom is the basic unit of matter. It is the smallest particle of an element that retains the chemical properties of that element. Atoms are made up of three types of particles: protons, neutrons, and electrons. Protons and neutrons are located in the nucleus of the atom, while electrons orbit around the nucleus in shells or energy levels. The number of protons in an atom's nucleus determines the element it represents. Atoms can combine with other atoms to form molecules, which make up all the matter in the universe. The study of atoms and their behavior is known as atomic physics or atomic chemistry.

The formula for ammonium dichromate is (NH4)2Cr2O7. To count the number of atoms in this compound, we need to first determine the number of atoms for each element present in the compound and then multiply those values by their respective coefficients:

There are 2 nitrogen atoms (N) for each ammonium ion, so there are a total of 2 x 2 = 4 nitrogen atoms.

There are 8 hydrogen atoms (H) for each ammonium ion, so there are a total of 8 x 2 = 16 hydrogen atoms.

There are 2 chromium atoms (Cr) in the compound.

There are 7 oxygen atoms (O) for each dichromate ion, so there are a total of 7 x 2 = 14 oxygen atoms.

Therefore, the total number of atoms in (NH4)2Cr2O7 is:

4 nitrogen atoms + 16 hydrogen atoms + 2 chromium atoms + 14 oxygen atoms = 36 atoms

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Answer:

Diseases of Poultry
a. ESCHERICHIA COLI INFECTIONS.
b. SALMONELLOSES.
c. PARATYPHOID INFECTIONS.
d. FOWL CHOLERA.
e. RIEMERELLA ANATIPESTIFER INFECTIONS.MYCOPLASMA.
f. NECROTIC ENTERITIS.
g. CHOLANGIOHEPATITIS IN BROILER CHICKENS.

Explanation:

Answer:

◎Bacterial diseases

◎Mycoplasmosis (CRD, Air sac, Sinusitis)

◎Fowl Cholera

◎Necrotic Enteritis

◎Ulcerative Enteritis (Quail disease)

◎Pullorum Disease

◎Fowl

◎Botulism

◎Infectious Coryza

◎Omphalitis

◎Erysipelas

◎Parasitic diseases (internal)

◎Parasitic diseases (external)

◎Infectious Bronchitis

◎Viral diseases

◎Newcastle Disease

◎Quail Bronchitis

◎Lymphoid Leukosis

◎Marek's Disease (Visceral Leukosis)

◎Infectious Bursal Disease (Gumboro)

Explanation:

:)

In the given reaction, hydrogen undergoes both oxidation and reduction. Hydrogen first oxidises from 0 to +1 oxidation state and then reduced  to -1 in LiH.

Oxidation is the process by which element combines with oxygen or loses electron forming its higher oxidation state. Whereas reduction is the process of combining with hydrogen or gaining electron to form the lower oxidation state of the element.

If an element undergoes both oxidation and reduction in the same reaction, it is called as disproportionation reaction. In the given reaction hydrogen undergoes disproportionation reaction.

In the molecular state H₂ is in 0 oxidation state and when it turns to LiNH₂, it oxidises to + 1 oxidation state and then reduces to -1 in LiH. Hence, option C is correct.

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Your question is incomplete. But your complete question probably was:

Because pure H2 is a hazardous substance, safer and more cost effective techniques to store it as a solid for shipping purposes have been developed. One such method is the reaction represented above, which occurs at 200 degrees Celsius. Which of the following happens to H atoms in the forward reaction?

Li₃N(s) + 2 H₂(g) ←→ LiNH₂(s) + 2 LiH(s)

(A) H atoms are oxidized only.

(B) H atoms are reduced only.

(C) H atoms are both oxidized and reduced.

(D) H atoms are neither oxidized nor reduced.

      A) La reacción entre el aluminio y el cloro.

Answer:

Ni(NO3)2 is the limiting reactant.

Explanation:

- First, we balance the equation...

Ni(NO3)2 + 2 KOH --->  2 KNO3 + Ni(OH)2

- Second, we find the moles of each substance...

65g Ni(NO3)2 / 182.703g Ni(NO3)2 = 0.356 mol Ni(NO3)2

58g KOH / 56.1056g KOH = 1.034 mol KOH

- Third, to make the molar ratio equal to each other for comparison, we either multiply KOH by 1/2 or multiply Ni(NO3)2 by 2 to compare the number of moles; because the Ni(NO3)2 to KOH molar ratio is 1 to 2. Note that the multiplication of moles is only for comparison. We do not use these multiplied values. We use the values from step 2...

0.356 mol Ni(NO3)2 * 2 = 0.712 mol Ni(NO3)2

0.712 mol Ni(NO3)2 < 1.034 mol KOH ... Ni(NO3)2 is the limiting reactant.

Hey there! :

Molar mass:

Al = 26.9815 g/mol

AlCl₃ = 133.3405 g/mol

Reaction stochemistry ,calculates the mass of AlCl3 produced

2 Al + 3 Cl₂ =  2 AlCl₃

2 * 26.9815 g Al ---------------------  2 *  133.3405 g AlCl₃

8.82 g Al -------------------------------  ( mass of AlC₃ )

mass of AlCl₃  =  ( 8.82 * 2 * 133.3405 ) /  ( 2 * 26.9815 )

mass of AlCl₃ = 2352.12642 / 53.963

mass of AlCl₃ = 43.58 g of AlCl₃

Hope this helps!

Answer:

A 400,000 kg object and a 100,000,000kg object

Explanation:

The objects with the most mass between them will have the greatest gravitational attraction.

This is why the last option is the right choice.

The reason for this is based on the Newton's law of universal gravitation which states that:

 "the gravitational force of attraction between two bodies is directly proportional to the product of their masses and inversely proportional to the square of the distance between them".

So, the more the mass, the greater the gravitational attraction between two bodies.

Answer:

La ley de los gases ideales relaciona cuatro propiedades macroscópicas de los gases ideales (presión, volumen, número de moles y temperatura). Si conocemos los valores de tres de estas propiedades, podemos utilizar la ley de los gases ideales para conocer la cuarta. En este video, usaremos la ley de los gases ideales para resolver el número de moles (y en última instancia de moléculas) en una muestra de un gas

Explanation:

try and find a better answer or ask ur teacher please

Answer:

6.0 mol LiNO₃

Explanation:

First we need to determine which reactant is the limiting reactant:

We calculate with how many Ca(NO₃)₂ moles would 3.0 moles of Li₃PO₄ react, using the stoichiometric coefficients of the reaction:

There are not as many Ca(NO₃)₂ moles, so Ca(NO₃)₂ is the limiting reactant.

Using the number of moles of the limiting reactant, we calculate how many moles of LiNO₃ would be formed:

Answer: I think the answer is Cesium (Cs)

Explanation:

A half-filled 6s subshell would be 6s^1

Answer:

A

Explanation:

If Hydrogen is H₂  There will be two silver

and is Carbon is C There will only be one gray

and if Oxygen is O₃ There will be three red

Answer:

A: Boron and carbon are likely together in one period because they have very close atomic numbers, while gallium and germanium are likely together in another period because they have very close atomic numbers.

Explanation: took the test on edge, hope this helps :D

Answer:

A!

Explanation:

I know it is because I took the test please trust me :)

Answer:

0.1 moles

Explanation:

3.4 g * (1 mol/34 g) = 0.1 moles

Answer:

d

Explanation:

wave a and b clashing constructively would make c a bigger wave and clashing destructively would make d a smaller wave, which they are.

Answer:

d

Explanation:

Answer: 2. Dalton Model

Explanation:

John Dalton proposed that atoms are indivisible spheres. Although his model of an atom was not entirely new to the scientific world since the ancient Greeks has made  a similar statement in the past ( all matter are made up of small indivisible particle called atom).

As of when Dalton proposed his model of an atom, electrons and nucleus where yet to be discovered.

Answer:

See explanation

Explanation:

% optical purity = specific rotation of mixture/specific rotation of pure enantiomer  * 100/1

specific rotation of mixture = 23°

specific rotation of pure enantiomer = 61°

Hence;

% optical purity = 23/61 * 100 = 38 %

More abundant enantiomer = 100% - 38 % = 62%

Hence the pure  (S) carvone is (-) 62° is the more abundant enantiomer.

Enantiomeric excess = 62 - 50/50 * 100 = 24%

Hence

(R) - carvone  =  38 %

(S) - carvone = 62%

Answer:

Explanation:

ee= -23/-61 × 100= 38%

S + R = 100%

S - R = 38%

Solve simultaneously;

S= 69% ( excess)

R= 100-69= 31%

Total  kilocalories for carbohydrate=560kcal.

Given that

1 gram of carbohydrate = 4 kilocalories of energy

Therefore Kilocalories on carbohydrate on foods eaten

Pizza= 45g carb x 4=180

Cola = 51 g carbx 4=204

Ice cream =45g carb x 4=180

Total  kilocalories for carbohydrate=564 rounding to the tens place becomes 560kcal.

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Oxidation number is a number assigned to an atom in a chemical compound that represents the number of electrons lost or gained by the atom.

A balancing equation or balanced is a chemical expression wherein the tally of atoms for each constituent element mirrors harmoniously on either side of the equation. This harmonious alignment extends to both mass and charge, embodying equilibrium throughout.

The art of balancing equations holds great significance as it upholds the revered principles of the conservation of mass and the conservation of charge.

The conservation of mass, a fundamental decree, dictates that the essence of matter remains unaltered, impervious to creation or annihilation in the course of a chemical transformation.

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Complete question:

What is oxidation number and balancing equation?

Answer:

We can use the principle of conservation of energy to solve this problem. The heat lost by the metal is equal to the heat gained by the water:

Q metal = -Q water

where Q metal is the heat lost by the metal, and Q water is the heat gained by the water.

The heat lost by the metal can be calculated using the formula:

Q metal = m metal * c metal * ΔT metal

where m metal is the mass of the metal, c metal is its specific heat, and ΔT metal is the change in temperature of the metal.

The heat gained by the water can be calculated using the formula:

Q water = m water * c water * ΔT water

where m water is the mass of the water, c water is its specific heat, and ΔT water is the change in temperature of the water.

We know the values of all the variables except c metal, so we can solve for it. We can start by calculating the values of Q metal and Q water:

Q metal = -Q water

m metal * c metal * ΔT metal = -m water * c water * ΔT water

Substituting the given values, we get:

5.4 g * c metal * (100.0 °C - T) = -142 g * 4.18 J/(g*°C) * (T - 24.2 °C)

Simplifying and solving for c metal, we get:

c metal = [142 g * 4.18 J/(g*°C) * (T - 24.2 °C)] / [5.4 g * (100.0 °C - T)]

Multiplying out, we get:

c metal = [593.56 J/(°C) * (T - 24.2 °C)] / [5.4 g * (100.0 °C - T)]

To solve for c metal, we need to find the value of T that satisfies the equation. We can do this by substituting the given value of ΔT water = 0.9 °C into the equation and solving for T:

c metal = [593.56 J/(°C) * (T - 24.2 °C)] / [5.4 g * (100.0 °C - T)]

c metal = [593.56 J/(°C) * (T - 24.2 °C)] / [540 g - 5.4 g * T]

0.9 g * [593.56 J/(°C) * (T - 24.2 °C)] = [540 g - 5.4 g * T] * c metal

535.2044 J/(°C) * (T - 24.2 °C) = 540 g * c metal - 5.4 g * T * c metal

535.2044 J/(°C) * T - 12931.7808 J = 540 g * c metal - 5.4 g * c metal * T

5.4 g * c metal * T + 535.2044 J/(°C) * T = 540 g * c metal + 12931.7808 J

T * (5.4 g * c metal + 535.2044 J/(°C)) = 540 g * c metal + 12931.7808 J

T = [540 g * c metal + 12931.7808 J] / [5.4 g * c metal + 535.2044 J/(°C)]

Substituting the given values, we get:

T = [540 g * c metal + 12931.7808 J] / [5.4 g * c metal + 535.2044 J/(°C)]

T = [540 g * c metal + 12931.7808 J] / [5.4 g * c metal + 535.2044 J/(°C)]

T ≈ 23.3 °C

Therefore, the specific heat of the metal is:

c metal = [142 g * 4.18 J/(g°C) * (T - 24.2 °C)] / [5.4 g * (100.0 °C - T)]

c metal ≈ 0.39 J/(g°C)

So the specific heat of the metal is approximately 0.39 J/(g*°C).

A 5.4 g sample of the metal is heated to the 100.0 °C and is placed in the beaker containing 142 g of the water at 24.2 °C. The specific heat of the metal is 1.322 J/ g °C.

The mass of the metal = 5.4 g

The final temperature = 25.1 °C

The initial temperature = 100 °C

The specific heat capacity of metal = x

The mass of the water = 142 g

The final temperature = 25.1 °C

The initial temperature = 24.2 °C

The specific heat capacity of water = 4.184 J/ g °C

Loss of Heat of Metal = Gain of Heat by Water

-q metal = + q metal

- 5.4 × x × ( 25.1 - 100 ) = 142 × 4.184 ( 25.1 - 24.2 )

404.46 x = 534.71

x = 1.322 J/ g °C

The specific heat capacity of metal is  1.322 J/ g °C.

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The net ionic equation for this gas evolution reaction is H+(aq) + SO32-(aq) SO2(g) + H2O, while the balanced molecular equation is 2HBr(aq) + K2SO3(aq) SO2(g) + 2H2O(l) + 2KBr(aq) (l).

The reaction's chemical formula is K2CO3(aq)+2HBr(aq)2KBr(aq)+CO2(g)+H2O. (l) Strong electrolytes in the process, K2CO3, HBr, and KBr totally dissociate in water to generate their corresponding ions.

A salt (the KBr) and water will be created when the HBr and KOH interact. While balancing this equation, make careful to count both hydrogen atoms on the reactants side.

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Since most reactions take place in solutions, it's critical to comprehend how the substance's concentration is expressed in a solution. The number of chemicals in a solution can be stated in a variety of ways. The grams of acetic acid is 611.90 g.

The number of moles of dissolved solute per liter of solution is the definition of molarity, a unit of concentration. Molarity is defined as the number of millimoles per milliliter of the solution by dividing the number of moles and the volume by 1000.

The equation which is used to calculate the molarity of two different solutions is:

M₁V₁ = M₂V₂

M₁ = M₂V₂ / V₁

0.300 × 18.53 / 10.00 = 0.55 M

Number of moles = Molarity × volume

n = 0.55 × 18.53 = 10.19

Mass = n × Molar mass = 10.19 × 60.05 = 611.90 g

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Answer:First we will find the volume of the tank.

Volume of right cylinder = pi * r² * h

⇒  3.14 * 6 ² * 4

⇒ 3.14 * 36 * 4

⇒452 . 16 feet³

Now as  1 cubic foot of water is about 7.5 gallons we will and rate 10 gallons per minute.

So, every minute 10/ 7.5 ≅ 1.34 cubic foot is getting filled.

Time taken = 452.16/ 1.34  ≅ 337.43 minutes

Which means 5.62 hours approximately and when rounding to the nearest tenth 5.6 hours.

Explanation:That is the answer

Nitrogen has 5 electrons in the outer shell. Like all the elements it tends to react with other elements to get 8 electrons in the outer shell and become stable. That's why it forms bonds.

Let's see what happens when two atoms of N bond together to form the molecule N₂.

One atom of N has 5 valence electrons, and if it wants to get 8 it needs to share 3 of them. So when 2 atoms of N bond together they will form a triple bond. Like this:

That's the Lewis Diagram. They are sharing 3 pairs of electrons and forming a triple bond.

So the answer to our problem is option D.

Answer: Oxygen and glucose are both reactants in the process of cellular respiration. The main product of cellular respiration

the ph is gonna be your value and the 4 is gonna be your main subject

so as the ph is your value u gonna ad your ph and 7 and 4 toghter then multiple your answer 2 times  because ph represent multiple and your value  

Answer:

joe biden

Explanation:

It was DONALD TRUMP :)     But Joe Biden got elected :(

Answer:

400 cm³

Explanation:

Let p₁ Pa be the original pressure of the gas

p₂ Pa be the new pressure of the gas

V₁ m³ be the original volume of the gas

V₂ m³ be the new volume of the gas

According to Boyle's Law,

p₁V₁ = p₂V₂

p₁ × 0.0002 = 1/2 p₁ × V₂

0.0002 = 1/2 × V₂

V₂ = 0.0004

∴ The new volume of the gas = 0.0004 m³ = 400 cm³

The new volume will be 400 cm³

Boyle’s law is a gas law which states that the pressure exerted by a gas (of a given mass, kept at a constant temperature) is inversely proportional to the volume occupied by it.

                                                   PV = constant

Boyle's Law can be used to compare changing conditions for a gas. In other words, the pressure and volume of a gas are inversely proportional to each other as long as the temperature and the quantity of gas are kept constant.

Given,

initial volume = 200cm³

Let us assume the initial pressure is p, then the final pressure will be 0.5p.

Using Boyle's law,

    P₁V₁ = P₂V₂

p × 200 = 0.5p × V₂

V₂ = (p × 200) ÷ ( 0.5p)

V₂ = 400 cm³

Therefore, the new volume will be 400 cm³

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The given chemical equation, 2N₂ + 3H₂ <==>2NH3, is an example of a reversible reaction.option A.

The double arrows between the reactants and products indicate that the reaction can proceed in both directions, forming both products and reactants.The reversible reaction, also known as a chemical equilibrium reaction, refers to a chemical reaction that can occur in both forward and reverse directions. It occurs when reactants are converted into products, and the products are also converted back into the original reactants.A reversible reaction can be identified by the symbol “<==>” or “⇌” that appears between the reactants and products in the chemical equation. It denotes that the reaction is in a state of chemical equilibrium. When the reactants and products have achieved equilibrium, the rate of the forward and reverse reactions is equal, and there is no further net change in the amounts of the reactants and products.A combustion reaction is a type of exothermic reaction in which a substance reacts with an oxidizing agent to produce heat and light. A one-way reaction is a type of reaction that occurs in only one direction and cannot be reversed without significant changes to the reaction conditions, such as changing the temperature or pressure.A reversible reaction, unlike a one-way reaction, can occur in both directions and reach equilibrium when the forward and reverse reaction rates are equal.option A.

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