Hydrogen compounds and states of matter

In summary, the chemical properties of hydrogen compounds can vary greatly depending on the state of matter they are in. This is due to factors such as the dissociation of H+ and OH- ions in solution, the energy required to break covalent bonds in the solid state, and the cohesive nature of the liquid solvent in an aqueous solution. The concept of phase behavior, which is determined by colligative properties, also supports the idea that choice D is the correct answer.
  • #1
n108
13
0
Chemical properties of hydrogen compounds can have vast differences depending on the state of matter that the substance is in - solid, liquid or gas. The difference in chemical properties is related to

the dissociation of H+ from the hydrogen compound into solution.

the dissociation of OH- from the hydrogen compound into solution.

the energy threshold required to break the covalent bonds in the solid.

the slight cohesion of the liquid solvent forming the aqueous solution.

I think the answer is D - it has nothing to do with hydrogen bonding...but I am not sure at all.
HELP! PLEASE!
 
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  • #2
"Phase behavior" is a function of the compound's "colligative properties;" so, yes, "D."
 

1. What are the properties of hydrogen compounds?

Hydrogen compounds, also known as hydrides, have a variety of properties depending on their chemical structure. Generally, they are highly reactive and can act as reducing agents. They also have low boiling and melting points, making them useful as refrigerants. Some hydrogen compounds, such as water, are essential for life on Earth.

2. What are the different states of matter that hydrogen can exist in?

Hydrogen can exist in all three states of matter: solid, liquid, and gas. At standard temperature and pressure, it is a colorless and odorless gas. At extremely low temperatures, hydrogen can become a liquid with properties similar to those of helium. At even lower temperatures, it can solidify into a crystalline structure.

3. What is the most common hydrogen compound?

The most common hydrogen compound is water, also known as H2O. It is essential for life and makes up about 71% of the Earth's surface. Other common hydrogen compounds include methane (CH4) and ammonia (NH3).

4. How are hydrogen compounds used in industry?

Hydrogen compounds have many industrial uses, including being used as fuel for rockets and as a source of energy in fuel cells. They are also used in the production of ammonia, a key component in fertilizers, and in the production of various chemicals such as plastics and pharmaceuticals.

5. What are some potential dangers of hydrogen compounds?

Hydrogen compounds can be hazardous if not handled properly. Hydrogen gas is highly flammable and can form explosive mixtures with air. Certain hydrogen compounds, such as hydrogen sulfide, can be toxic in high concentrations. Additionally, some hydrogen compounds, like hydrofluoric acid, can cause severe burns upon contact with skin.

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