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3 years ago

The distance between any two successive places where the shape of the wave repeats itself

Chemistry

2 answers:

Anit [1.1K]3 years ago

5 0

Wave length is the answer.

Sidana [21]3 years ago

4 0

Answer:

B: wavelength

Explanation:

A wavelength (λ) is the distance between any two successive places where the shape of the wave repeats itself.

It can be the distance between

two consecutive peaks
two consecutive troughs
three consecutive nodes (zero-crossings of the horizontal axis)

The wave is all these repeating units joined together in sequence.

A hertz is a unit of frequency, and a decibel is a measure of the loudness of a sound wave.

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The average laps per minute are 2.4

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Explain The element lithium has two common isotopes: Li–6 and Li–7 If the average atomic mass of lithium is 6.94004 u, determine

rosijanka [135]

Answer:

%Li-6 = 5.996% & %Li-7 = 94.004%

Explanation:

let X₁ = Li-6 & X₂ = Li-7 where Xₙ = mole fraction

X₁ + X₂ = 1 => X₁ = 1 - X₂

6·X₁ + 7·X₂ = 6.94004

=> 6(1 - X₂) + 7·X₂ = 6.94004

=> 6 - 6·X₂ + 7·X₂ = 6.94004

=> 6 + X₂ = 6.94004

X₂ = 6.94004 - 6 = 0.94004 => %X₂ = %Li-7 = 94.004%

X₁ = 1.00000 - 0.94004 = 0.05996 => %X₁ = %Li-6 = 5.996%

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3 years ago

How can the structure of atoms be connected to a colorful firework display?

olasank [31]

These metallic substances are actually metal salts, which produce luminescent light of different colors when they are dispersed in the air. This light is produced by electrons inside the metal atoms

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3 years ago

What is the purpose of molecular models?

dsp73

Answer: to see if the matter is a compound, mixture, or element.

Explanation:

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3 years ago

There are ________ σ bonds and ________ π bonds in h3c-ch2-ch=ch-ch2-c≡ch.

FrozenT [24]

The number of sigma and pi bonds are,

Sigma Bonds = 16

Pi Bonds = 3

Explanation:
Every first bond formed between two atoms is sigma. Pi bond is formed when already a sigma bond is there. While in case of Alkyne (triple Bond) there is one sigma and one pi bond already present, so the third bond is formed by second side-to-side overlap of orbitals, hence, a second pi bond is formed.
Below all black bonds are sigma bonds, while in alkene there is one pi bond and in alkyne there are two pi bonds.

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3 years ago