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3 years ago

Which color of visible light has the longest wavelength and explain?

Chemistry

2 answers:

PilotLPTM [1.2K]3 years ago

6 0

Answer:

red has the longest wavelength, we know this because when anything that emits light in space since it is moving away from us and it is light years away, by the time the photon emitted reaches us it will seem a red like color if not completely red

Explanation:

icang [17]3 years ago

3 0

Answer:

red because of how reflective and hydrogen

Explanation:

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The pressure caused by a sample of gas is 2.25 atm. 1 atm is

nexus9112 [7]

Answer:

$0.326\frac{N}{cm^2}$

Explanation:

Hello.

In this case, considering that 1 atm equals 1.01 kPa, we can compute the pressure in kPa first as shown below:

$2.25atm*\frac{1.01kPa}{1atm} =3.26kPa$

Now, we convert kPa to Pa, considering 1 kPa equals 1000 Pa:

$3.26kPa*\frac{1000Pa}{1kPa}=3260Pa$

Now, since Pa is equal to N/m², and 1 m equals 100 cm, the pressure in newton per square centimeter turns out:

$3260\frac{N}{m^2}*(\frac{1m}{100cm})^2 \\\\0.326\frac{N}{cm^2}$

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3 years ago

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ziro4ka [17]

Answers:

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3 years ago

which best describes ionization energy? a. energy needed to add an electron to a neutral atom in the gas phase b. energy needed

SVEN [57.7K]

<span>c. energy needed to remove an electron from an atom or ion in the gas phase</span>

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3 years ago

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Fix the formula for KF2<br> Write out the full correct formula?

Korvikt [17]

Given :

A chemical compound $KF_2$ .

To Find :

Fix the formula for $KF_2$ and write the full correct formula.

Solution :

We know, Potassium( K ) and Fluorine( F ) both have a valency of 1 i.e potassium can donate one electron and Fluorine can accept one electron only.

So, the chemical formula $KF_2$ is wrong because no element has filled electron.

Therefore, to stabilise the molecule, 1 Potassium atom should make a bond from 1 Fluorine i.e KF ( correct formula ) .

Hence, this is the required solution.

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3 years ago

Hydrogen bonds form between molecules containing _________ bonds; the hydrogen bond is between a hydrogen atom of one molecule a

nasty-shy [4]

Answer:

The answer is A. Polar covalent; negatively

Explanation:

Hydrogen bonds form between molecules containing polar covalent bond the hydrogen bond is been a hydrogen atom of one molecule and a partially negative charged atom of another.

Example $H_{2}O$ (water):- It contain a slight positive charge on one side and a slight negative charge on the other.

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3 years ago

Which color of visible light has the longest wavelength and explain?​

Which color of visible light has the longest wavelength and explain?