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Darina [25.2K]
3 years ago
10

This has been deleted as question wasn't answered on time

Chemistry
1 answer:
astra-53 [7]3 years ago
8 0
How i be feeling waiting for my questions to be answered in the middle of a quiz.
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How much energy must be added to 2 mol H2O(g) to cause it to decompose into H2 and O2?
nika2105 [10]
The forward reaction is:
2H₂(g) + O₂(g) → 2H₂O(g); ΔH = -484 kJ

The forward reaction releases 484 kilojoules of energy to form water. As per the reaction equation, in order to cause two moles of water to decompose and make the reaction proceed backwards, 484 kilojoules of energy must be added to water.
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CH4 as empirical formula is the simplest ratio of all the atoms in a molecule
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Given its reactive nature, oxygen is essential to cellular metabolic reactions. Peroxisomes use oxygen to break down fatty acids
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Catalase

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These reactive oxygen specie or free radicals that cause damage or injury to cells also lead to oxidative stress if unchecked by antioxidants. As suggested in the question, there are several enzymes that act as antioxidants in mitigating the effects of these reactive oxygen specie or free radicals. These enzymes include catalase, superoxide dismutase and glutathiones (such as glutathione s-transferase).

The enzyme that however prevents the accumulation of hydrogen peroxide (H₂O₂) in the peroxisome is catalase. Catalase is an enzyme that is present in the peroxisome; it (catalase) detoxifies/acts on H₂O₂, converting it (H₂O₂) into water and oxygen.

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What is the atomic number of an atom that has fie neutrons and four electrons
Natali [406]

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4

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Compare and contrast a pure substance with a mixture and give an example.
Inessa [10]

Of any substance? What about two powders such as 1/2 cup of white flour, then mixing 1/2 cup of salt together with the flour. This would then form a more coarse mixture being that the two particles differ in shape.

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