Table of Contents
- 1 How can you tell if a compound is ionic or molecular?
- 2 How do chemical bonds form between the atoms in a molecular compound?
- 3 Is h2o2 a molecular compound?
- 4 Is BaS molecular or ionic?
- 5 How are hydrogen bonds different from covalent bonds?
- 6 Why does hydrogen bonding cause high surface tension?
- 7 What is the difference between dipole and hydrogen bonding?
- 8 What is the partial positive charge of hydrogen bonding?
How can you tell if a compound is ionic or molecular?
As a general rule of thumb, compounds that involve a metal binding with either a non-metal or a semi-metal will display ionic bonding. Compounds that are composed of only non-metals or semi-metals with non-metals will display covalent bonding and will be classified as molecular compounds.
How do chemical bonds form between the atoms in a molecular compound?
Chemical bonds are the forces of attraction that tie atoms together. Bonds are formed when valence electrons, the electrons in the outermost electronic “shell” of an atom, interact. Atoms with equal or similar electronegativity form covalent bonds, in which the valence electron density is shared between the two atoms.
How is hydrogen bonding responsible for the high surface tension and low vapor pressure of water?
The oxygen atom acquires a partial negative charge, while the hydrogen atoms acquire partial positive charges. Hydrogen bonding between water molecules is responsible for its high surface tension, low vapor pressure, and high melting and boiling points relative to other molecular substances with similar molar masses.
Is ag2so4 ionic or molecular?
The chemical name of Ag2 SO4 is silver sulfate. It’s formed by an ionic bond, or the joining of positively charged and negatively charged ions.
Is h2o2 a molecular compound?
hydrogen peroxide
Hydrogen peroxide/IUPAC ID
Is BaS molecular or ionic?
Formula and structure: The barium sulfide chemical formula is BaS. The molar mass is 169.39 g/mol. The molecule is formed by one barium cation Ba2+ and one sulfide anion S2-. The two ions are bound trough an ionic bond.
When naming a molecular compound what is the number?
Naming Binary Molecular Compounds
| Number of Atoms in Compound | Prefix on the Name of the Element |
|---|---|
| 3 | tri- |
| 4 | tetra- |
| 5 | penta- |
| 6 | hexa- |
How does a hydrogen bond form?
Hydrogen Bonding. Hydrogen bonding is a special type of dipole-dipole attraction between molecules, not a covalent bond to a hydrogen atom. It results from the attractive force between a hydrogen atom covalently bonded to a very electronegative atom such as a N, O, or F atom and another very electronegative atom.
How are hydrogen bonds different from covalent bonds?
A hydrogen bond is formed due to the attraction between two atoms of two different molecules. The main difference between covalent and hydrogen bonds is that covalent bonds are intramolecular attractions whereas hydrogen bonds are intermolecular attractions.
Why does hydrogen bonding cause high surface tension?
It results from the uneven partial charge distribution between atoms in a molecule. When many water molecules form hydrogen bonds with other water molecules, they form a lattice of water molecules, which is strong and flexible. This creates a high surface tension.
How does hydrogen bonding affect surface tension?
Hydrogen bonds provide higher surface tension to a liquid. If you disrupt hydrogen bonds, surface tension will decrease. Thats why at high temperature, surface tension is lower due to disruption of hydrogen bonds. Hydrogen bonds can be disrupted by the addition of surfactants and surface tension can be reduced also.
How do you identify hydrogen bonding in a molecule?
To recognize the possibility of hydrogen bonding, examine the Lewis structure of the molecule. The electronegative atom must have one or more unshared electron pairs as in the case of oxygen and nitrogen, and has a negative partial charge.
What is the difference between dipole and hydrogen bonding?
I NTERMOLECULAR FORCES: HYDROGEN BONDING Introduction: The hydrogen bond is really a special case of dipole forces. A hydrogen bond is the attractive force between the hydrogen attached to an electronegative atom of one molecule and an electronegative atom of a different molecule.
What is the partial positive charge of hydrogen bonding?
The hydrogen then has the partial positive charge. To recognize the possibility of hydrogen bonding, examine the Lewis structure of the molecule. The electronegative atom must have one or more unshared electron pairs as in the case of oxygen and nitrogen, and has a negative partial charge.
How does hydrogen bonding affect the properties of water?
Hydrogen bonding is usually stronger than normal dipole forces between molecules. Of course hydrogen bonding is not nearly as strong as normal covalent bonds within a molecule – it is only about 1/10 as strong. This is still strong enough to have many important ramifications on the properties of water.