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maxonik [38]
4 years ago
14

Which chemical reaction is associated with a​ fire?

Chemistry
2 answers:
lorasvet [3.4K]4 years ago
7 0
I believe the correct answer is D none of the above,<span />
vlabodo [156]4 years ago
3 0
C. Fire is the rapid oxidation of a material in the exothermic chemical process of combustion, releasing heat, light, and various reaction products.
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Can I+ (the iodine cation) becalled a Lewis base?<br> Fullyexlplain your answer.
Alenkinab [10]

Answer: No I+ cannot be called a Lewis base.

Explanation:

According to Lewis Theory, it defines an acid as an electron-pair acceptor and a base as an electron-pair donor.

In terms of Lewis basicity, Iodide ion (anions) has the more readily available lone pair electrons for donation since iodide ion is less electronegative .

With the help of the net electronic structure one can understand the answer of the question, because we need to study the I+  ion (cation) structure.

Lewis acid is therefore any substance, that can accept a pair of nonbonding electrons. 

From the picture below I+ is most likely ready to accept electrons not to give from it 5s orbital to become stable.

7 0
3 years ago
CO2(s) → CO2(g)
Vesnalui [34]

Answer: entropy, increase

Explanation:

During the sublimation of carbon dioxide, the disorder and the entropy of the system increase. Hope this works :)

4 0
4 years ago
SOUND ENERGY :SCIENCE:
loris [4]

Answer:

As the amplitude of the sound wave increases, the intensity of the sound increases. Sounds with higher intensities are perceived to be louder. Relative sound intensities are often given in units named decibels (dB).

Explanation:

7 0
3 years ago
For the reaction o(g) + o2(g) → o3(g) δh o = −107.2 kj/mol given that the bond enthalpy in o2(g) is 498.7 kj/mol, calculate the
Aneli [31]
The reaction;
O(g) +O2(g)→O3(g), ΔH = sum of bond enthalpy of reactants-sum of food enthalpy of products.
ΔH = ( bond enthalpy of O(g)+bond enthalpy of O2 (g) - bond enthalpy of O3(g)
-107.2 kJ/mol = O+487.7kJ/mol =O+487.7 kJ/mol +487.7kJ/mol =594.9 kJ/mol
Bond enthalpy (BE) of O3(g) is equals to 2× bond enthalpy of O3(g) because, O3(g) has two types of bonds from its lewis structure (0-0=0).
∴2BE of O3(g) = 594.9kJ/mol
Average bond enthalpy = 594.9kJ/mol/2
=297.45kJ/mol
∴ Averange bond enthalpy of O3(g) is 297.45kJ/mol.
8 0
4 years ago
What is a system called when neither energy nor matter is exchanged between the system and the surroundings?
Evgesh-ka [11]

Answer:

Isolated system

Explanation:

If we are talking about theremodynamic system answer is ISOLATED SYSTEM

If we talking about mechanic annswer is CLOSED SYSTEM

CLOSED SYSTEM IN CLASSICAL MECHANICS = ISOLATED SYSTEM IN THERMODYNAMICS.

4 0
4 years ago
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