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Pure substances do not exist in nature because they always want to either gain or lose electrons to form a complete outer shell. Because of this they are almost always found as part of compounds with other elements. The exceptions are the noble gases which have complete outer shells naturally and are the most un-reactive elements, even so they are very hard to extract because of their low reactivity so it took years for scientists to even realise they existed because they wouldn't react with anything.
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Why does hydrogen molecule does not exist?
Hydrogen molecules do exist but they are less stable than hydrogen atoms. This is because hydrogen molecules require a large amount of energy to form since hydrogen atoms are highly reactive and tend to exist independently. Additionally, hydrogen molecules can easily dissociate into individual atoms at lower temperatures.
Can sodium and mercury exist in monoatomic molecule in vapour state?
No, sodium and mercury exist as diatomic molecules in the vapour state due to the nature of their chemical bonding. Sodium forms Na2 while mercury forms Hg2 molecules.
What are non-molecular substances?
Non-molecular substances are substances that do not consist of individual molecules but rather have a different type of bonding or structure. This can include ionic compounds like salts, network solids like diamond or quartz, and metallic substances like iron or copper. These substances do not exist as discrete molecules but rather as extended networks or arrangements of atoms.
The term gas is limited to those substances that exist in the gaseous state at?
The term gas is limited to those substances that exist in the gaseous state at room temperature and pressure. This means they have low density, take the shape of their container, and have molecules that are far apart. Gases can be compressed and expand to fill their container.
Why ethanol called universal solvent?
Ethanol is a universal solvent as it contains both polar nature (OH) ion and the ethyl group which is a non polar substance. As a result it means that both polar nature molecules and non polar nature molecules can bond with ethanol which can as well form hydrogen bonding amongst substances.
Many elements found in nature exist as?
The chemical substances found in the atmosphere exist as gases.
What do not exist as molecules in nature?
neon and helium
Do some elements in nature exist as molecules?
Yes: Oxygen and nitrogen are the most frequently encountered examples.
Do molecular elements exist in nature?
Yes, The elements hydrogen, nitrogen, oxygen, and sulfur are all molecular elements that exist in nature. Due to their reactivity, it is rare to find the halogens and phosphorus in their elemental forms in nature.
Why does hydrogen molecule does not exist?
Hydrogen molecules do exist but they are less stable than hydrogen atoms. This is because hydrogen molecules require a large amount of energy to form since hydrogen atoms are highly reactive and tend to exist independently. Additionally, hydrogen molecules can easily dissociate into individual atoms at lower temperatures.
How does hydrogen get in to the body?
Hydrogen molecules don't exist by themselves in nature. Hydrogen gas is abundant throughout existence and you get it through water and air. Technically speaking, you are made up of hydrogen and carbon as well as countless other substances. It's EVERYWHERE
What is the major force that drives nonpolar substances out of aqueous solution?
The major force that drives nonpolar substances out of aqueous solution is the hydrophobic effect. Nonpolar substances are repelled by water molecules due to water's polar nature. This leads to the aggregation of nonpolar molecules to minimize their contact with water molecules, resulting in their separation from the aqueous solution.
What is conductivity tell us about the nature of chemical substances?
Conductivity refers to the ability of a substance to conduct electric current, which provides insights into its ionic or molecular nature. Substances that conduct electricity well, such as salts and acids, typically dissociate into ions in solution, indicating they are electrolytes. Conversely, poor conductors, like most nonmetals, often exist as neutral molecules and do not produce free ions. Thus, conductivity helps classify substances as ionic or covalent and indicates their potential behavior in chemical reactions.
What is the universal solvent?
Water is often referred to as the universal solvent because it has the ability to dissolve a wide range of substances due to its polar nature. Its polarity enables water molecules to form hydrogen bonds with other molecules, allowing it to dissolve various compounds and ions.
Do atoms and their combination make up all the substances in the world?
Yes, atoms are the building blocks of all substances in the world. Atoms combine to form molecules, which in turn combine to create different types of substances. This arrangement of atoms and molecules gives rise to the vast diversity of materials and compounds found in nature.
What is hydrophobic substances?
fats, oils, lipids are all hydrophobic.
What is the nature of the substances dissolved in water?
Substances that dissolve in water are polar molecules, like water. Also, many ionic compounds can also dissolve in water as well, such as common table salt, NaCl.
