Which one is one pkease?

Yes the main benifit can be recyclation of energy

The value of the equilibrium constant, Ke given the data from the question is 9.660

Equilibrium constant for a given is defined as the concentration of the products raised to their coefficient to the concentration of the reactants raised to their coefficient

For example:

eB <=> cD

The equilibrium constant for the reaction above is given as

Ke = [D]^c / [B]^e

The following data were obtained from the question:

The equilibrium constant for the reaction reaction can be obtained as follow

Ke = [C]² / [A][B]

Ke = [0.75]² / [0.232][0.251]

Ke = 9.660

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Answer is NH4NO3

YOU HAVE WRITTEN WRONG IN OPTION NO. A

EXPLANATION

[tex]\huge\underline\mathcal{\red{A}\blue{n}\pink{s}\purple{w}\orange{e}\green{r} -}[/tex]

We know that ,

[tex]Molarity \: (M) = \frac{no. \: of \: moles \: of \: solute }{volme \: of \: solution} \\[/tex]

it can be seen that we aren't provided with the no. of moles of solute in the question.

So let's calculate it using the given formula ~

[tex]no. \: of \: moles \: of \: solute = \frac{given \: mass}{molar \: mass} \\ \\ \longrightarrow \: \frac{50}{36.5} \\ \\ \longrightarrow \: 1.37 \: moles \: ( \: approx \: )[/tex]

Also ,

we're given that volume of solution = 500 mL = 0.5 L

Substituting the values in the formula of molarity , we get

[tex]Molarity = \frac{1.37}{0.5} \\ \\ \bold{\implies \: \boxed{Molarity = 2.74M}}[/tex]

hope helpful ~

Answer:

I think false

Explanation:

bcs oxygen can create good feeling in our body

Answer:

Friction also prevents an object from starting to move, such as a shoe placed on a ramp. When friction acts between two surfaces that are moving over each other, some kinetic energy is transformed into heat energy.

Friction is involved in energy transformation considering the fact that When friction acts between two surfaces that are moving over each other, some kinetic energy is transformed into heat energy.

Friction also prevents an object from starting to move, such as a shoe placed on a ramp.

In other words, opposing force is known as friction. The type of friction that acts on an object that is not moving is static friction.

Static friction serves as a kind of friction that do occur between two object that are not moving which means the object are static in nature.

Thats why during rainy season while walking on slippery roads people wear shoes with spikes which prevents a person from slipping into mud by the action of friction.

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Explanation:

see the picture for the answer

Answer:

As you go down a group on the periodic table, you get more electron shells and therefore a larger atomic radius.

The overall charge of the given compound of potassium and Arsenic is zero (0).

An atom consists of a positively charged nucleus, surrounded by one or more negatively charged particles called electrons. When the number of protons exceed the number of electrons, the atom will positively charged and it will be negatively charged if the number of electrons exceed the number of protons.

For the given compound;

Thus, the overall charge of the given compound of potassium and Arsenic is zero (0).

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8.0 mol of lithium bromide

4 M solution of lithium bromide requires 4 moles of the compound per liter

8 ÷ 4 = 2

answer is 2 Liters

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Moles are the divisional of the mass and the molar mass. In 13.95 gms of calcium, there are 0.348 moles.

In chemistry, moles are the measurement units that are used to estimate the small entities of the atoms or the molecules. Moles are calculated as:

Moles = mass ÷ molar mass

We know,

The molar mass of calcium = 40 gm/mol

The mass of calcium = 13.95 gms

Moles of calcium are calculated as:

Moles = 13.95 ÷ 40

= 0.348 moles

Therefore, in 13.95 gms 0.348 moles of calcium is present.

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Answer:

C. ribs.

Explanation:

The appendicular skeleton includes the shoulder girdles and arm bones, the pelvic gridle and the lower limb bones (leg bones). The ribs is part of the axial skeleton.

Answer:

# 20 of Equilibrium

At 1500°C the system:

2NO(g)

N₂(g) + O₂(g) was allowed to come to equilibrium. The equilibrium concentrations were:

NO(g) = 0.0021 M; N₂ = O₂ = 0.239 M.

What is the value of Ke at this temperature?

Select one:

O a.

27.2

O b.

7.7 x 10-5

O c.

3.7 x 10-²

d.

1.3 x 104

O e. 8.8 x 10-3

Explanation:

# 20 of Equilibrium

At 1500°C the system:

2NO(g)

N₂(g) + O₂(g) was allowed to come to equilibrium. The equilibrium concentrations were:

NO(g) = 0.0021 M; N₂ = O₂ = 0.239 M.

What is the value of Ke at this temperature?

Select one:

O a.

27.2

O b.

7.7 x 10-5

O c.

3.7 x 10-²

d.

1.3 x 104

O e. 8.8 x 10-3

A model of a shopping centre is drawn to scale where 1 cm on the model represent 4 m on the ground. Music shop Thabo's Sports Ware Fati's Clothing shop Grocery store PARKING Coffee shop Toilets Restaurant Shoe store Physiotherapy Health and Fitness center 1.1 Which shop is on the right of the physiotherapy? (2) 1.2 Describe the position of the Coffee Shop in relation to the Toilets. (2)

The correct structure that corresponds to the name in the image above is structure A. Details about hydrocarbons can be found below.

Alkanes are organic compound that belongs to any acyclic saturated hydrocarbon e.g. methane, ethane, etc.

Alkanes have a single carbon bond and can be attached to by certain compounds. Methyl is a compound with the formula; CH3.

Therefore, the correct structure that corresponds to the name in the image above is structure A.

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Answer:

C

Explanation:

It was right on acellus

Atoms are the indivisible particles of matter. Atoms, molecular mass, and moles can be related by the Avogadros number. There are 2.00 × 10²⁵ atoms of neon in the sample.

The mass of the substance is the multiplication product of the moles and the molar mass.

We know, that 1 mole = 6.022 x 10²³ atoms

From the Avogadro's number, mass, and the molar mass the number of atoms is calculated as:

(6.022 x 10²³ atoms ÷ 1 mole Neon) × (1 mole Neon ÷ 20.18g) × ((6.73x10²)g Ne) = 2.00 × 10²⁵ atoms.

Therefore, 2.00 × 10²⁵ atoms of neon are present in the sample.

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For an engine whose displacement is listed as 430 in.², the engine piston displacement in liters is mathematically given as

PD= 7.37 L  

Generally, the equation for the dimensional analysis method,\, we convert in to L is mathematically given as

l*(v/l)*l/v

Therefore,  piston displacement

PD=(450 in3) . (1 dm3 / 61.024 in3) . (1 L / 1 dm3)

PD= 7.37 L  

In conclusion, piston displacement

PD= 7.37 L  

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Answer:

In colorimetry, metamerism is a perceived matching of colors with different (nonmatching) spectral power distributions. Colors that match this way are called metamers.

Explanation:

In colorimetry, metamerism is a perceived matching of colors with different (nonmatching) spectral power distributions. Colors that match this way are called metamers.

examples

diethyl ether and methyl propyl ethers are metamers.

Answer:

B

Explanation:

specific heat capacity is the amount of Heat required to raise the temperature of a unit mass of substances by one degree

Answer:

electrostatic force

Explanation:

Answer:

Mars

Explanation:

neither Mercury nor Venus have any moons at all, Earth has one and Mars has its two small moons

Answer:

≈170.22 [gr].

Explanation:

1) M(Cu₂CO₃)=2*64+12+3*16=188 [gr/mol];

2) the part of copper in Cu₂CO₃ is:

[tex]\frac{64}{188} =\frac{16}{47};[/tex]

3) 16/47% of 500 [gr] is:

[tex]500*\frac{16}{47}=170.22[gr].[/tex]

Avogadro's law states that in every mole of a substance, there are [tex]6.022 \times 10^{23}[/tex] particles.

This means that in [tex]9.54 \times 10^{23}[/tex] molecules, there are [tex]\frac{9.54 \times 10^{23}}{6.022 \times 10^{23}}=\boxed{1.58 \text{ moles (to 3 sf)}}[/tex]

Answer:

Solvent

Explanation:

Solvent dissolves solute resulting in the formation of a solution.

Answer:

B) Solvent

Explanation:

In forming a solution, the substance which dissolves the solute is called the solvent.

Sibce its Kb is larger than its Ka, the monohydrogen phosphate ion, HPO4^2- will behave more as a base than as an acid.

An amphoteric ion is an ion that can act both as an acid or a base.

An example of an amphoteric ion is monohydrogen phosphate ion,

[tex]HPO_4^{2-}[/tex]

The Ka of monohydrogen phosphate ion is 4.8 × 10^-13 while the Kb is 1.6 × 10^-7.

The In is greater than the Ka.

Therefore, the monohydrogen phosphate ion, HPO4^2- will behave more as a base than an acid.

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