2 years ago

What 3 atoms make up the universe

Chemistry

1 answer:

jek_recluse [69]2 years ago

6 0

Hydrogen, helium and oxygen

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Covalent bonds in a molecule absorb radiation in the IR region and vibrate at characteristic frequencies.

vazorg [7]

Answer:

$Frequency=1.6\times 10^{12}\ Hz$

Explanation:

The relation between frequency and wavelength is shown below as:

$c=frequency\times Wavelength
$

c is the speed of light having value $3\times 10^8\ m/s$

Given, Wavelength = 188 μm

Also, 1 μm = $10^{-6}$ nm

So,

Wavelength = $188\times 10^{-6}$ m

Thus, Frequency is:

$Frequency=\frac{c}{Wavelength}$

$Frequency=\frac{3\times 10^8}{188\times 10^{-6}}\ Hz$

$Frequency=1.6\times 10^{12}\ Hz$

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3 years ago

Which has more atoms: 1 mole of hydrogen atoms or 1 mole of carbon-12 atoms?

Lyrx [107]

Each mole has 6.02 x10^23 atoms so they have same atoms

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2 years ago

Which metal is most likely to be formed easily into

Nataly [62]

Answer:

answer is gold

Explanation:

bcz gold is having a property of malleable so it can be drawn into thin sheets

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3 years ago

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The ___________________ in the mouth secrete enzymes which help prepare the food for digestion in the stomach.

lesantik [10]

<span>The word that should be filled in the blank in order to complete the sentence, "The ______ in the mouth secrete enzymes which help prepare the food for digestion in the stomach." The answer would be saliva. Saliva contains salivary amylase that helps soften the food. </span>

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2 years ago

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Susan needs to simplify the expression shown below what should be her first step

Digiron [165]

Susan should follow PEMDAS,

Parentheses
Exponents
Multiplication
Division
Addition
Subtraction,

So, the first step should be, to solve the equation in the parentheses.

I hope this helps!

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3 years ago