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enot [183]
2 years ago
5

If u can write like a sentence or two would be amazing:

Chemistry
1 answer:
mihalych1998 [28]2 years ago
7 0

Respiration is the process of oxidation of food materials like glucose, Amino acids, fatty acids to water and carbon dioxide. Respiration does not require any external heat to carry on the process. Combustion is only done by applying external heat to the sugar molecule to burn.

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Electrochemistry - Equilibrium
Ipatiy [6.2K]

Answer:

Explanation:

The relation between equilibrium constant and Ecell is given below .

E⁰cell = (RT / nF ) lnK  , F is faraday constant T is 273 + 25 = 298 K

E⁰cell  =  1.46 - 1.21 = .25 V

n = 2

Putting the values

.25 = (8.314 x 298  lnK) / (2 x 96485 )

lnK = 19.47

K = 2.85 x 10⁸

2 )

Change in free energy Δ G

Δ G ⁰ = nE⁰ F

n = 4

E⁰ = .4 + .83 = 1.23 V

Δ G ⁰= 4 x 1.23 x 96485

= 474706 J / mol

3 )

E⁰cell = (RT / nF ) lnK

n = 2

1.78 = 8.314 x 298  lnK / 2 x 96485

lnK = 138.638

K = 1.62 x 10⁶⁰

8 0
3 years ago
On a graph showing distance versus time, a horizontal line represents an object that is
riadik2000 [5.3K]

Answer:

the anwser is; B: increasing its speed

5 0
3 years ago
A substance is a good conductor of electricity. Which of the following best explains the probable position of the substance in t
Mariana [72]

Answer: Option (A) is the correct answer.

Explanation:

Elements present in group 1 are known as alkali metals. Whereas elements present in group 2 are called alkaline earth metals and elements from group 11 to 12 are transition metals.

As it is known that metals have the ability to lose electrons in order to attain stability and electricity is the flow of electrons from one point to another.

Therefore, metals are good conductors of heat and electricity.

Thus, we can conclude that the statement it’s between groups 1 to 12 because it is metal best explains the probable position of the substance in the periodic table.

6 0
3 years ago
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What is the smallest substance? <br> 1 .mixture<br> 2 .compound<br> 3 .element
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Number 3 it’s element
8 0
4 years ago
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PLZ HELP!!!! I ONLY HAVE 20MIN.
anastassius [24]

Answer:

4

Explanation:

in order for the bobber to float,it must be less dense, and for the line to sink, it must be more dense.

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3 years ago
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