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Ilia_Sergeevich [38]
3 years ago
14

Which molecule is a source of energy a store of energy in the body and can mix with water

Chemistry
2 answers:
Allushta [10]3 years ago
6 0

Answer:

Glucose

Explanation:

Glucose is a source of energy and it is stored in the body (in the form of glycogen) and it can also dissolve in water.

Glucose produces energy (in the form of ATP) after its complete breakdown via various pathways starting with glycolysis through the tricarboxylic acid cycle (TCA) and eventually the electron transport chain (ETC) with the eventual net production of 34 ATPs.

One of the physical properties of glucose is that it readily dissolves in water.

JulijaS [17]3 years ago
4 0
Do you mean ATP (adenosine triphosphate)? The breakdown of glucose produces ATP and water, and ATP is then used to provide activation energy for other reactions in a cell.
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The partial pressure of O2 in air at sea level is 0.21atm. The solubility of O2 in water at 20∘C, with 1 atm O2 pressure is 1.38
adell [148]

Answer:

1.21x10^{-3} M

Explanation:

Henry's law relational the partial pressure and the concentration of a gas, which is its solubility. So, at the sea level, the total pressure of the air is 1 atm, and the partial pressure of O2 is 0.21 atm. So 21% of the air is O2.

Partial pressure = Henry's constant x molar concentration

0.21 = Hx1.38x10^{-3}

H = \frac{0.21}{1.38x10^{-3} }

H = 152.17 atm/M

For a pressure of 665 torr, knowing that 1 atm = 760 torr, so 665 tor = 0.875 atm, the ar concentration is the same, so 21% is O2, and the partial pressure of O2 must be:

P = 0.21*0.875 = 0.1837 atm

Then, the molar concentration [O2], will be:

P = Hx[O2]

0.1837 = 152.17x[O2]

[O2] = 0.1837/15.17

[O2] = 1.21x10^{-3} M

7 0
3 years ago
The electron configuration of bromine is 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p5 classify electrons in each.
bulgar [2K]

Bromine has the following electron configuration: 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p5. categorize the electrons in each. Answer for video: The video player is loaded.

On the periodic chart, row 5, column 7, is where you can find a chemical element that was identified in 1811. It has a proton count of 53 and an atomic mass of 126.9. Iodine's atom, then, contains 53 electrons in the following configuration: 1s2, 2s2, 2p6, 3s2, 3d10, 4p6, 5s2, 4d10, 5p5 (Kr 4d10 5s2 5p5). Cu Z = 29 has an electrical arrangement of 1s2 2s2 2p6 3s2 3p6 3d10 4s1. Copper (Co) has the following electron configuration: 1s2 2s2 2p6 3s3 3p6 4s2 3d7. If a chemist were to refer to Copper by its subshell, they would abbreviate this notation to "3d7."

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7 0
1 year ago
What is the mass of OH- in Ca(OH)2
Ne4ueva [31]
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Hydrogen: 1.01 g/mol

The mass would be 17.01 g/mol
5 0
3 years ago
What volume of 2.0 M HCl in mL will neutralize 25.0 mL of 1.00 M KOH?
MakcuM [25]
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Which statement describes a chemical property that many elements might share?
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ANSWER:

I think its B.

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