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iogann1982 [59]
3 years ago
8

Complete the table by classifying each property as either a physical or chemical property

Chemistry
1 answer:
Advocard [28]3 years ago
8 0
Where is the table? I dont know what to classify 
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Which is an effect of short term expsure to stress​
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Anger, depression and suicidal thoughts
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3 years ago
What is the name for the point at which the indicator changes color in a titration?
zhannawk [14.2K]
A drop of indicator solution is added to the titration at the start; when the color changes the endpoint has been reached.
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3 years ago
According to the table, which gas would be least efficient-that is, have the least heat-storing ability--for transferring heat f
aalyn [17]

Answer:

<u>Oxygen</u>

Explanation:

If we had the same question then the table would've given the specific heat for these gases:

Water (steam) | 2.08

Air (25°C) | 1.01

Oxygen | 0.92

Hydrogen | 14.30

Out of these options, oxygen has the lowest specific heat and so it has the least heat-storing ability of the group.

7 0
3 years ago
Which of these describes an endothermic reaction?
Rus_ich [418]

Energy is absorbed bc endo means in so endothermic means energy is absorbed

5 0
3 years ago
Discuss the function of cobalt in action of vitamin B12 and its derivatives and how cobaloximes serve as models for the biologic
S_A_V [24]

Answer:

Cobalt and its derivatives act as a catalyst for some enzymatic functions, in this case, it acts as a cofactor.

Cobaloximes are effective electrocatalysts for the production of hydrogen and, therefore, functional models for hydrogenases.

Explanation:

Cobalt is a metal that participates directly in the synthesis of vitamin B12, necessary for the metabolism of various proteins, with megaloblastic anemia being one of the greatest evidences of a lack.

Its main function is that it integrates the vitamin B12 molecule, also called cyanocobalamin, so that lack of cobalt causes the same symptoms as vitamin B12 deficiency.

Vitamin B12 can only be synthesized by bacteria and for this a cobalt atom is required, in fact adult ruminants can synthesize enough vitamin B12 in the rumen provided they have an adequate supply of cobalt.

It acts as a catalyst for some enzymatic functions, in this case, it acts as a cofactor. Very important for example in the transfer of methyl groups, in this way cobalt, together with folic acid participate in the synthesis of methionine.

The dimethylglioxime (dmgH) complexes to the cobalt to give a series of complexes of Co (III), called cobaloxime, that having 4 positions coordinated to nitrogen in a coplanar way and forming a ring similar to the corrínico nucleus; If another substituent also has an N-heterocyclic nature, it can correctly simulate the B12 system.

5 0
3 years ago
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