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WARRIOR [948]
3 years ago
6

Why is ∆Hf0 62.4 kJ/mol for I2(g), but 0.0 kJ/mol for I2(s)?

Biology
1 answer:
Aloiza [94]3 years ago
6 0

Answer:

12(s) is in its standard state.

Explanation:

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Advanced Placement Biology is an Advanced Placement biology course and exam offered by the College Board in the United States.

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Which of the following structures develops into a pollen grain?
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Which of the following is formed during the light-dependent reaction of photosynthesis? ATP Carbon dioxide Glucose Water
lukranit [14]

Answer:

Glucose

Explanation:

ATP, Carbon Dioxide, and Water are all results of Cellular Respiration and do <em>not</em><em> </em>form during Photosynthesis. These three are actually used in the process of Photosynthesis, so they are not created by it. Plants use photosynthesis to create their own glucose.

5 0
3 years ago
Read 2 more answers
"DNA denatures at a higher temperature than does protein, yet its structure depends on relatively weak hydrogen bonds. Why the d
Reika [66]

The option are not given and the options are:

Proteins are denatured by breaking covalent bonds.

Linear molecules like DNA are inherently stable.  

Individual hydrogen bonds may be weak, but DNA structure is stabilized by many thousands or millions of these bonds - far more than found in proteins.

The statement is incorrect; it actually takes far more energy to denature proteins than it does to denature DNA.

Answer:

The correct answer is- Individual hydrogen bonds may be weak, but DNA structure is stabilized by many thousands or millions of these bonds - far more than found in proteins.

Explanation:

Proteins become denatured when it looses its three-dimensional structure. Disulfide bond and hydrogen helps in stabilizing the three-dimensional structure of proteins and if these bonds break due to any factor protein lost its structure and function.

DNA is made up of a large amount of hydrogen bond because in AT base-pairing two hydrogen bonds are required and in GC base pairing three hydrogen bonds are required. Therefore it can be concluded that as more hydrogen bonds stabilizes DNA than protein its melting temperature is higher than protein.

3 0
3 years ago
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