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where liquid Hf is used

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12y ago

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Explain the different between Hf and HF?

Hf refers to the chemical element hafnium, a transition metal with atomic number 72. HF refers to hydrofluoric acid, a colorless and highly corrosive acid. Hafnium is a solid metal used in nuclear reactors and electronics, while HF is a liquid acid used in various industrial processes.


What physical state is HF at room temp?

HF is a very corrosive gas at room temperature. It can even etch glass!


Which attractions are most prevalent between molecules of HF in the liquid phase?

In the liquid phase, the most prevalent attractions between molecules of HF are hydrogen bonding interactions. These interactions occur between the hydrogen atom in one HF molecule and the fluorine atom in another HF molecule, forming a strong dipole-dipole bond. Additionally, van der Waals forces also contribute to the overall attraction between HF molecules in the liquid phase.


Why is HF a liquid when H2 is a gas?

The principal reason is the hydrogen bonding between HF molecules. The second reason is that London dispersion forces will be higher in HF because it has more electrons than H2


The forces that account for HF being a liquid while H2 and F2 are gases are known as?

intermolecular forces. In the case of HF, hydrogen bonding exists between HF molecules, which results in stronger intermolecular attractions compared to the London dispersion forces present in H2 and F2. These stronger intermolecular forces in HF allow it to exist as a liquid at room temperature.


How is the H fusion used to calculate the energy released when a mass of liquid freezes?

The heat of fusion is the amount of energy needed to change a substance from a liquid to a solid. To calculate the energy released when a mass of liquid freezes, you would use the equation Q = m * Hf, where Q is the energy released, m is the mass of the substance, and Hf is the heat of fusion.


Is the hf element a solid liquid or a gas?

HF [note correct capitalization] is not an element but a compound, since it contains two kinds of atoms. It is a gas at standard temperature and pressure.


Used in the etching of glass?

HF, Hydrofluoric acid.


Can HF be decomposed by a chemical change?

No, hydrofluoric acid (HF) cannot be decomposed by a chemical change because it is a stable compound. Physical methods are typically used to separate HF into its constituent elements.


Is NaCl plus HF a buffer?

I don't believe that this solution was used.


Why is the net ionic equation for hydrofluoric acid and potassium hydroxide this HF OH- yield H2O liquid F- aq and not H OH- yield H2O liquid and why is f in hf a spectator ion in other aq reactions?

The net ionic equation for hydrofluoric acid and potassium hydroxide is HF + OH- -> H2O + F-. This is because hydrofluoric acid (HF) is a weak acid, so it does not completely dissociate in solution. The fluoride ion (F-) acts as a spectator ion in other aqueous reactions because it remains in solution unchanged and does not participate in the reaction.


What is the compound HF acid?

'HF' is hydrofluoric acid. Corresponding to 'HCl'; hydrochloric acid.