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Bad White [126]
3 years ago
6

Please help!!!!! Why is a spectrum for a given element unique for that element? A. No element has more than two electrons in the

first shell. B. Each element has a unique arrangement of electrons. C. Atoms of different elements have different masses. D. Atomic nuclei contain no electrons.
Chemistry
2 answers:
erik [133]3 years ago
5 0
I think that the best scientific answer would be.....
Anon25 [30]3 years ago
3 0
The correct answer for this question is B.
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Due is 10 min please help
Nonamiya [84]

Answer:

its c hope this helped;)

Explanation:

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3 years ago
What does the plasma membrane do? A. makes food for the cell B. reproduces cells C. keeps the cell small D. encloses specific st
Mila [183]
<span>D. encloses specific structures</span>
3 0
3 years ago
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Some glucose produced by gluconeogenesis is stored in the body as glycogen. Order the steps of glycogen synthesis.
Harlamova29_29 [7]

Answer:

e. UDP-glucose pyrophosphorylase catalyzes the reaction of glucose-I-phosphate and UTP to UDP-glucose and PPi

a. Pyrophosphatase converts PPi and water into two Pi

b. Glycogen synthase adds a glucose unit from UDP-glucose to glycogen, producing a larger glycogen molecule and UDP

Explanation:

Glycogen synthesis or glycogenesis is the process of synthesis of glycogen molecules from glucose molecules in living organisms. Glycogen is a polysaccharide storage form of glucose and helps to store excess glucose in the body form use when required by the body.

The synthesis of glycogen involves sugar nucleotides. Sugar nucleotides are compounds in which a sugar molecule is attached to a nucleotide through phosphate ester bond, resulting in the activation of the sugar molecule. The sugar nucleotides then are used as substrates for the polymerization of the monosaccharide sugars into disaccharides, oligosaccharides and polysaccharides.

In the synthesis of glycogen, glucose-6-phosphate from phosphorylation of free glucose by hexokinase is first isomerized to glucose-1-phosphate by phosphoglucomutase.

Glucose-1-phosphate is then converted to UDP-glucose by its reaction with UTP catalyse by UDP-glucose pyrophosphorylase. The reaction is favoured by the rapid hydrolysis of PPi produced to two molecules of inorganic phosphate by the enzyme pyrophosphatase.

Glycogen synthase then adds a glucose unit from UDP-glucose to a growing chain of glycogen, producing a larger glycogen molecule and free UDP.

6 0
3 years ago
How many quantum numbers are used to describe the properties of electrons in atomic orbitals?
LenaWriter [7]
4 Quantum numbers are used

1.Azimuthal
2.Principal
3.Spin
4.Magnetic
6 0
3 years ago
The molar heat capacity of an unknown substance is 92.1 J/mol-K. If the unknown has a molar mass of 118 g/mol, what is the speci
dlinn [17]

Answer : The specific heat (J/g-K) of this substance is, 0.780 J/g.K

Explanation :

Molar heat capacity : It is defined as the amount of heat absorbed by one mole of a substance to raise its temperature by one degree Celsius.

1 mole of substance releases heat = 92.1 J/K

As we are given, molar mass of unknown substance is, 118 g/mol that means, the mass of 1 mole of substance is, 118 g.

As, 118 g of substance releases heat = 92.1 J/K

So, 1 g of substance releases heat = \frac{92.1}{118}=0.780J/g.K

Thus, the specific heat (J/g-K) of this substance is, 0.780 J/g.K

8 0
3 years ago
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