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Why is DNA sticky when extracted?
While glass is positively charged, the oxygen in the DNA, which is negatively charged, is attracted to it, making it "sticky". DNA is mostly composed of oxygen meaning that it can stick to pretty much anything.
How many bonding pairs does pyramidal four have?
Three bonding pairs, thus a pyramid.
What forces typically hold non metal atoms together within a molecule?
Non-metal atoms within a molecule are primarily held together by covalent bonds, which involve the sharing of electron pairs between atoms. These bonds arise due to the attraction between the positively charged nuclei of the atoms and the negatively charged electrons shared in the bond. Additionally, intermolecular forces, such as hydrogen bonding and van der Waals forces, can influence the interactions between molecules but do not directly hold the atoms together within a single molecule.
How many lone pair and bonding pair in phosphine?
In phosphine (PH3), there are three lone pairs and three bonding pairs.
In the Lewis structure for a molecule of ammonium how many lone pairs of electrons does nitrogen have?
In the Lewis structure for a molecule of ammonium (NH₄⁺), nitrogen has no lone pairs of electrons. Instead, it forms four covalent bonds with four hydrogen atoms, using all of its valence electrons in bonding. This results in a positively charged ammonium ion, with nitrogen having a complete octet through these bonds.
Is ZnS a ionic crystal?
ZnS is a covalent crystal. Although composed of positively charged zinc ions and negatively charged sulfur ions, the bonding within ZnS is primarily covalent due to the sharing of electron pairs between the zinc and sulfur atoms.
Why is DNA sticky when extracted?
While glass is positively charged, the oxygen in the DNA, which is negatively charged, is attracted to it, making it "sticky". DNA is mostly composed of oxygen meaning that it can stick to pretty much anything.
How are bases named?
Bases are named using the name of the cation (positively charged ion) followed by the name of the anion (negatively charged ion). The name of the anion typically ends in "-ide" for monatomic anions, or "-ate" or "-ite" for polyatomic anions.
When beta particle strikes a living cell?
It interacts with the molecules making up the cell and creates one or more ion pairs by causing outer electrons to leave the molecule and making the molecule positively charged, while the released electron is negatively charged.
Water molecule bonded to a sulfate ion?
When a water molecule bonds with a sulfate ion, the water molecule forms hydrogen bonds with the sulfate ion due to its high electronegativity. The hydrogen atoms in the water molecule can interact with the negatively charged oxygen atoms in the sulfate ion, while the lone pairs on the oxygen atoms in the water molecule can interact with the positively charged sulfur atom in the sulfate ion through hydrogen bonding.
Why is OCl2 polar?
OCl2 is polar because the molecule has a bent shape due to the lone pairs on the central chlorine atom, creating an uneven distribution of charge. This results in a dipole moment where the chlorine atoms are more negatively charged, and the oxygen atom is more positively charged.
How did Watson and Crick affect society negatively or positively?
They affected it positively, because we wouldn't know what we know today! We wouldn't know that DNA is like a spiral staircase and how it works with the complementary base pairs.
How many bonding pairs does pyramidal four have?
Three bonding pairs, thus a pyramid.
Is hydroxyl the same with hydronium ions?
No, hydroxyl ions (OH-) are negatively charged ions commonly found in bases, while hydronium ions (H3O+) are positively charged ions formed when a proton binds to a water molecule. Hydroxyl ions contribute to basic properties, while hydronium ions indicate acidic properties.
What is an ion pair and how does it form in chemical reactions?
An ion pair is a pair of ions, one positively charged and one negatively charged, that are attracted to each other due to their opposite charges. In chemical reactions, ion pairs can form when a molecule loses or gains an electron, creating ions with opposite charges that then attract each other to form a pair.
How many bonding and non-bonding electrons pairs are found in the BF3 molecules?
In BF3, there are 3 bonding electron pairs and 0 non-bonding electron pairs. Boron has 3 valence electrons, and each fluorine contributes one electron for bonding, giving a total of 3 bonding pairs in the molecule.
How many non bonding pairs does oxygen have?
Oxygen has two non-bonding pairs of electrons.
