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What is a large covalently-bonded molecule that has a repeated structural unit?
A polymer is a large covalently bonded molecule that has a repeated structural unit. Examples of polymers include proteins, DNA, and synthetic plastics like polyethylene.
How do you characterize covalent?
The bond itself involve the sharing of electrons. Typical covalently bonded compounds are made up of molecules which may be small e.g. H2 or large, e.g. proteins.
Whiat covalently connects segments of DNA?
Ligase covalently connects segments of DNA. It catalyses the joining of two large molecules by forming a new chemical bond.
Is graphite a molecular or ionic compound?
Graphite is a giant molecule bonded with covalent bonds.Some of the bonds involve delocalised electrons.
What are large molecules substances bonded to each other with weak bonding forces and softens when heated?
RTE-G2 # 68
What are three characteristics of bio-molecules?
Bio molecules are large, complex moleucles build from smaller, simpler, repeating units. Most bio molecules contain carbon atoms that are bonded together in chains and rings.
What are large molecules in a cell made up of?
Large molecules in a cell are made up of atoms bonded together to form complex structures. These molecules include proteins, nucleic acids (DNA and RNA), carbohydrates, and lipids. The specific arrangement of atoms in these molecules determines their function in the cell.
What is the definition of complex organic molecules?
Complex organic molecules are large molecules made up of carbon atoms bonded together with other elements such as hydrogen, oxygen, nitrogen, and sulfur. These molecules are essential for life and play important roles in biological processes.
What is giant molecular crystal?
Giant molecular crystals are those in which a large number of atoms are covalently bonded to each other creating a network. There are four examples of molecules forming giant structures. They are silicon and two forms of carbon called diamond and graphite.
What are weak bonds that are not strong enough to hold atoms together to form molecules but are strong enough to form bonds within and around large molecules?
Hydrogen bonds are weak bonds that form between a hydrogen atom and a highly electronegative atom (such as oxygen or nitrogen) in a different molecule. While individually weak, hydrogen bonds collectively play important roles in stabilizing large molecules like proteins and nucleic acids.
Why is the melting point of diamond higher than that of oxygen?
The melting point of a substance is determined by the strength of the bonds between its atoms. In diamond, each carbon atom is covalently bonded to four other carbon atoms in a strong network structure, leading to a high melting point. In oxygen, the diatomic molecules are held together by weaker intermolecular forces, resulting in a lower melting point.
Diamond is a huge molecule covalently bonded and how could it melt?
The fact that is it large network of covalently bonded carbons make it extremely hard to melt in the first place. Secondly, diamond at high temperatures will not melt, rather it will prefer to burn, as characteristic of all carbon allotropes. A diamond will burn or oxidize when exposed to a hot flame in the presence of oxygen, for example an oxygen torch with a temperature of 800 degrees C (1,472 degrees F), according to The Merck Index, a standard chemistry reference work.
