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grin007 [14]
3 years ago
10

Media X contains 2mM glucose, 5% NaCl and 10mM beef extract. This is an example of a (COMPLEX/DEFINED) media.

Chemistry
1 answer:
konstantin123 [22]3 years ago
5 0

Answer:

Complex media.

Explanation:

In a defined medium the exact composition of each component is known and it contains pure ingredients. In a complex medium, the exact composition of each component is unknown and it often contains extracts of animal or plant tissues (whose exact composition is unknown). In this case, media X contains beef extract, which is an undefined ingredient so it is a complex medium.  

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Why is there not a corresponding drop in ionization energies between Bi and Po in the sixth period as N and O?
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Answer:

See explanation

Explanation:

According to the Journal of Chemical Education, Volume 80, No.8 (2003); "The first ionization energy of bismuth appears to be  anomalous......It has been claimed that spin– orbit coupling by the Russell–Saunders scheme would lower  the ground state of Bi+ ..."

However, the involvement of  d and f orbitals in Bi and Po implies that the outermost orbitals are poorly screened hence the drop between nitrogen and oxygen is not observed between Bi and Po.

The same argument could be extended to explain the reason why  there not a corresponding drop between Ba and Tl is the sixth period even though they are in the same group as Be and B.

3 0
3 years ago
Gabriella weighs 450 N. She climbs a flight of stairs to a height of 3 m. It takes her 5 seconds. How much work does Gabriella d
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The answer is letter C.

6 0
3 years ago
Which of these compounds is not a molecule?<br><br> A) MgO<br><br> B)SO2<br><br> C)CO<br><br> D) CS2
DerKrebs [107]
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5 0
3 years ago
The decomposition of nitryl chloride is described by the following chemical equation: 2NO2C1(g) → 2NO2 (g)-C12 (g) Suppose a two
Gnoma [55]

Answer:

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Rate of reaction:

k1 [NO2] [F2]

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Since the first step is the slowest step, it is the rate determining step of the reaction

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6 0
3 years ago
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3 0
3 years ago
Read 2 more answers
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