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kotykmax [81]
3 years ago
14

What is the reason behind that the melting and boiling point of iron is more than that of sodium?​

Chemistry
1 answer:
sweet [91]3 years ago
3 0

Answer:

As metals are giant lattice structures, the number of electrostatic forces to be broken is extremely large, and so metals have high melting and boiling points. This means that the melting point and boiling point of metals are more similar to those for ionic compounds than for covalent substances.

Explanation:

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Intermolecular forces and kinetic energy both play a role in the phase a substance is in at a particular temperature and pressur
Step2247 [10]

Answer:

(Highest kinetic energy)

3. Neon at 65 K and 15 atm

2. Neon at 55 K and 10 atm

4. Neon at 25 K and 5 atm

1. Neon at 5 K and 0 atm

(Lowest kinetic energy)

Explanation:

In gases, <em>kinetic energy is higher the higher the temperature is</em>. This is because the molecules have more available energy under those conditions. <u>Generally there's also an increase in kinetic energy if there's an increase in pressure</u> -assuming there's no phase changes ie. the gas condenses into a liquid-.

6 0
3 years ago
Can someone please help me with this question???
skad [1K]

Answer:

C.

Explanation:

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4 0
3 years ago
Calculate the wavelength of the photon emitted when an electron makes a transition from n=6 to n=3. You can make use of the foll
Angelina_Jolie [31]

<u>Answer:</u> The wavelength of light is 1.094\times 10^{-6}m

<u>Explanation:</u>

To calculate the wavelength of light, we use Rydberg's Equation:

\frac{1}{\lambda}=R_H\left(\frac{1}{n_f^2}-\frac{1}{n_i^2} \right )

Where,

\lambda = Wavelength of radiation

R_H = Rydberg's Constant  = 1.097\times 10^7m^{-1}

n_f = Final energy level = 3

n_i = Initial energy level = 6

Putting the values in above equation, we get:

\frac{1}{\lambda }=1.097\times 10^7m^{-1}\left(\frac{1}{3^2}-\frac{1}{6^2} \right )\\\\\lambda =\frac{1}{914617m^{-1}}=1.094\times 10^{-6}m

Hence, the wavelength of light is 1.094\times 10^{-6}m

6 0
4 years ago
Which of these are associated with the solar wind? Check all that apply.
WINSTONCH [101]

Answer:

Disrupts communication systems

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8 0
3 years ago
Read 2 more answers
Which statement best describes balancing equations and the law of conservation of mass?
Marta_Voda [28]

Answer:

B.) The number of atoms is the same in the reactants and in the products, and the total mass is the same in the reactants and in the products.

Explanation:

law of conservation of matter/mass states that no atoms can be created or destroyed

hope this helps :)

6 0
3 years ago
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