What are properties of radio waves

1 answer:

8 0

Radio waves are a type of electromagnetic(EM) radiation with wavelengths in three electromagnetic spectrum longer than infrared light. They have have frequencies from 300 GHz to as low as 3 kHz, and corresponding wavelengths from 1 millimeter to 100 kilometers.

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Which of the following is the smallest? amino acids peptides polypeptides proteins

yKpoI14uk [10]

Amino acids those are the things inside your stomach that break up the food/drink and distribute the nutrients you need throughout the body

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3 years ago

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In which of the following substances does sharing of electrons between two atoms occur?

malfutka [58]

Answer:- B- $SO_4^-^2$

Explanations:- Sharing of electrons takes place between non metals and the bond formed by the sharing of electrons is known as covalent bond. In first choice we only have a zinc metal and so no sharing of electrons would be possible here.

In third choice we have NaCl. Na is a metal and Cl is a non metal. The property of metals is to transfer its valence electrons to the non metal and the bond formed is known as ionic bond. So, third choice is also not correct.

In choice B we have sulfate ion that has sulfur and oxygen atoms and both of these are non metals. So, sharing of electrons is present here between the S and O atoms and covalent bonds are formed.

So, choice B- $SO_4^-^2$ is the right answer.

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3 years ago

What is the numbers of molecules for 65.8g of CO2?

baherus [9]

Answer:

One gram of carbon dioxide contains 13.6 x 10²¹ number of molecules.

Explanation:

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2 years ago

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Which statement is true of a rock layer that had another rock layer deposited on top of it?

Karo-lina-s [1.5K]

Answer:

second rock...I know it

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3 years ago

What is difference between ∆H and ∆H°

Elena-2011 [213]

If it is shown as ∆H , then it means that a specific chemical reaction is undergoing heat in Kelvin(K). If it is shown as ∆H° , then it means that a specific chemical reaction is undergoing heat in Celsius(C⁰).

Hope this is the answer you are looking for mate!

If it is correct then please mark my answer as the brailiest! :)

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4 years ago