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Leokris [45]
3 years ago
9

What happens to the anode in an electrochemical cell

Chemistry
1 answer:
adell [148]3 years ago
3 0
Answer: it loses mass
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What is the sign of Mercury​
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Answer:

The answer is Hg.

Explanation:

Symbol for Mercury is Hg.

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3 years ago
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How many moles of Al are needed to react completely with 1.8 mol of FeO?
Tju [1.3M]
<span>1.8 × (2/3) = 1.2

brainliest please

</span>
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3 years ago
Which number represents an acidic pH, 4 or 9? _______ Numerical Answers Expected! Answer for Blank 1:
Tasya [4]

Answer:

4

Explanation:

pH scale of acidic is 4.

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3 years ago
how many electrons would a neutral atom of nitrogen need to gain in order to have a full valence electron shell?
hichkok12 [17]
N  1s²2s²2p³ + 3e⁻ → N⁻³  1s²2s²2p⁶  [Ne]

3 electrons
3 0
3 years ago
A certain organ pipe, open at both ends, produces a fundamental frequency of 272 HzHz in air. Part A If the pipe is filled with
vladimir2022 [97]

Answer:

fundamental frequency in helium = 729.8 Hz

Explanation:

Fundamental frequency of an ope tube/pipe = v/2L

where v is velocity of sound in air = 340 m/s; λ is wave length of wave = 2L ; L  is length of  the pipe

To find the length of the pipe,

frequency  = velocity of sound / 2L

272 = 340 / 2 L

L = 0.625 m

If the pipe is filled with helium at the same temperature, the velocity of sound will change as well as the frequency of note produced since velocity is directly proportional to frequency of sound.

Also, the velocity of sound is inversely proportional to  square root of molar mass of gas; v ∝ 1/√m

v₁/v₂ = √m₂/m₁

v₁ = velocity of sound in air, v₂ = velocity of sound in helium, m₁ = molar mass of air, m₂ = molar mass of helium

340 / v = √4 / 28.8

v₂ = 340 / 0. 3727

v₂  =  912.26  m /s  

fundamental frequency in helium  = v₂ / 2L

fundamental frequency in helium = 912.26 / (2 x 0.625)

fundamental frequency in helium = 729.8 Hz

7 0
3 years ago
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