When you burn a log in your fireplace you are converting c<span>ellulose into carbon dioxide and water.
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Wood is made from cellulose. When wood burns, cellulose reacts with oxygen from the air and it forms carbon dioxide and water vapor.
The reaction of the combustion of glucose is as follows:
C₆H₁₂O₆ + 6O₂ = 6 CO₂ + 6H₂O
When wood burns, we notice that it slowly disappears because it passes into the mentioned gases. The ash that is created is part of the wood that did not burn.
Answer: D, splitting water into hydrogen and oxygen is a chemical change.
Answer: The bulk of liquids separate from the standard substance through crystallization, creating a crystalline block.
Freezing is almost often an exothermic mechanism which ensures that heat is emitted when liquid transforms into concrete.
The energy emitted after freezing, known as the fusion enthalpy, is a latent heat, which is precisely the same as the energy used to melt the same volume of solid.
Answer:
D. [NO₂]²/[N₂O₄]
Explanation:
The equilibrium constant expression for a reaction is products over reactants. Since NO₂ has a coefficient of 2, it will become an exponent.
So, it would be:
[NO₂]²/[N₂O₄]
Hope that helps.
That dose not make any sense and plus I have not got that far in chemistry yet
