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stich3 [128]
2 years ago
15

What is lawn sand made up of and clay don’t copy straight off Cuz I can’t write the same thing it has

Chemistry
1 answer:
lubasha [3.4K]2 years ago
3 0

Answer:

?? what i dont understand

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What is Keg for the reaction N2 + 3H2 = 2NH2 if the equilibrium
AlladinOne [14]

<u>Answer:</u> The equilibrium constant for the given reaction is 1.33

<u>Explanation:</u>

We are given:

Equilibrium concentration of ammonia = 2 M

Equilibrium concentration of nitrogen gas = 3 M

Equilibrium concentration of hydrogen gas = 1 M

For the given chemical equation:

N_2+3H_2\rightleftharpoons 2NH_3

The expression of K_{eq} for above equation follows:

K_{eq}=\frac{[NH_3]^2}{[N_2][H_3]^3}

Putting values in above equation, we get:

K_{eq}=\frac{(2)^2}{3\times (1)^3}\\\\K_{eq}=1.33

Hence, the equilibrium constant for the given reaction is 1.33

4 0
3 years ago
Electricity is the _of charged<br> particles.<br> A.movement<br> B. collection<br> C.build up
Vitek1552 [10]

Answer:

c

Explanation:

4 0
3 years ago
True or false : Color Changes are used to show reaction completion
Aleks [24]

Answer:

True

Explanation:

It means the reaction is occuring.

7 0
3 years ago
Calculate the boiling point of water if the atmospheric pressure is 630 mmhg
Mumz [18]

The boiling point of water can be calculated by the equation:

Where:

P = Pressure in mm Hg

Po = Atmospheric pressure in mm Hg

ΔH= heat of vaporization in kJ/mol

R = Ideal Gas Constant (J/mol-K)

To = normal boiling point in Kelvin

T = boiling point of water (K)

Our known values are:

P = 630 mm Hg

Po = 760 mm Hg

ΔH = 40.66 kJ/mol = 40.66×1000 =40660

R = 8.314 J mol⁻¹ K ⁻¹

To = 373 K

Putting these values in the equation,

ln \frac{P_{0}}{P}= \frac{\Delta H}{R}(\frac{1}{T}-\frac{1}{T_{0}})

ln \frac{760}{630}= \frac{40660}{8.314}(\frac{1}{T}-\frac{1}{373})

Solving the equation will give:

T=370K

so, the boiling point of water is 370 K.

4 0
4 years ago
Read 2 more answers
Why are salt and sugar both able to dissolve in water, even though the solutes have different types of chemical bonding?
Feliz [49]

Answer:

See explanation

Explanation:

A substance is only soluble in water if it is composed of ions or polar groups which are capable of interaction with water.

Salt is composed of ions which are easily solvated by the dipoles of water molecule. Sucrose is composed of polar groups capable of interaction with water. This accounts for the solubility of sucrose (sugar) in water. Sugar is a covalent molecule but is composed of polar groups while salt is composed of ionic bonds.

Hence salt and sugar are both soluble in water for the reasons described above.

4 0
3 years ago
Read 2 more answers
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