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motikmotik
3 years ago
5

Question 7

Chemistry
1 answer:
Rufina [12.5K]3 years ago
4 0

Answer:

The 4 physical changes are. 1) Melt, 2) Evaporate, 3) Dissolve, 4) Bend.

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At a given temperature, the equilibrium constant for the formation of HI from H2 and I2 was found to be 29.9. Calculate the equi
evablogger [386]

Answer:

The correct answer is: K'= 0.033.

Explanation:

The formation of HI from H₂ and I₂ is given by:

H₂ + I₂ → 2 HI      K= 29.9

The decomposition of HI is the reverse reaction of the formation of HI:

2 HI → H₂ + I₂     K'

Thus, K' is the equilibrium constant for the reverse reaction of formation of HI. It is calculated as the reciprocal of the equilibrium constant of the forward reaction (K):

K' = 1/K = 1/(29.9)= 0.033

Therefore, the equilibrium constant for the decomposition of HI is K'= 0.033

5 0
4 years ago
A long crack in earths crust from which lava may flow is called a
mylen [45]
Fissures is the answer.
5 0
3 years ago
Are elements, compounds, or both made up of small invisible particles?
son4ous [18]

I think both of them are but I really don't know


6 0
3 years ago
Which of the following is a reasonable ground-state electron configuration?
Fittoniya [83]

Answer:

A ground state electron configuration follows the Aufbau Principle that states that electrons should be filled up in orbitals in increasing energy. In the given sequences, the right configuration is 

1s2 2s2 2p6 3s2 3p6 4s2 3d8. 

Explanation:

6 0
3 years ago
JURCES OF
Lorico [155]

Answer:

Covalent bond

Explanation:

A covalent bond is formed when two atoms share electrons. The shared electrons are positioned between the nuclei of the bonding atoms.

In the bonding between chlorine and hydrogen, chlorine has seven valence electrons. Hence, it needs one more electron in order for the atom to attain an octet structure. Hydrogen has one valence electron and needs one more electron in order to attain a duplet structure.

The two bonding atoms now share two electrons(provided by each of the bonding atoms) in a covalent bond such that chlorine has a complete octet and hydrogen has a complete duplet.

4 0
3 years ago
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