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2 to 29.999 Mhz
2 to 29.999 Mhz
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∙ 16y ago
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What is HF band for radiocommunications?
The HF band is considered to be 3 Mhz to 30 Mhz.
What is the frequency range of intermediate frequency?
NTSC TV IFs:video, 45.75MHzchroma, 3.58MHzaudio, 4.5MHz
What event has the potential for rendering the entire HF frequency band useless?
Intense solar activity Nuclear war
How is Hf related to the H of a reaction?
The Hreaction is the difference between Hf, products and Hf, reactants
Is HF acid?
No, it is not ionic. HF is covalent.
What is the compound HF?
HF is hydrogen fluoride.
How does the Hreaction relate to the Hf of molecules involved in a reaction?
Hreaction = Hf, products - Hf, reactants
What determine the strength of acid?
For normal acids, pH is most accurate. For hydrofluoric acid, pH is NOT a good indicator--a 1-percent HF solution has a lower pH than a 50-percent solution does, and a 10-percent HF solution has the highest pH of all. The range is from 3.1 (for a 1-percent solution) to 4.5 (for a 10-percent solution). HF is considered a weak acid--not all the HF molecules dissociate when the HF gas is put into water--but it's the most corrosive acid around.
Explain the different between Hf and HF?
Hf is the element hafnium. A dense gray metal. HF is the compound hydrogen fluoride, a toxic, acidic gas.
How does the H reaction relate to the Hf of molecules involved in a reaction?
Hreaction = Hf products - Hf reactants
KE equals hf minus hfo what does hf stand for?
hf is the energy of photons incident on the surface
How is delta hf related to the delta h of the reaction?
^Hreaction = ^Hf, products - ^Hf, reactants Apex
