Covalent Bonds
Define what a covalent bond is.
A covalent bond is a chemical bond formed when two atoms share one or more pairs of valence electrons.
What is an ion
An atom which is no longer electrically neutral
What is a chemical reaction
Is a process in which atoms of one or more substances rearrange to form one or more new substances
What is a molecule?
A group of atoms held together by covalent bonds that’s act as an individual unit.
What is an ionic bond
A bond between positively and negatively charged ions
What are reactants
The substances produced by the chemical reaction
What is a polar molecule?
A molecule that has a partial positive end and partial negatives end due to uneven sharing of electrons.
A bond formed when many metal atoms share their valence electrons
What is a coefficient
A number placed
Why doesn’t oil dissolve in water?
Because oil is a no polar compound, while water is a polar compound.
What are three properties of metals?
High melting point, usually solid at room temp., good conductors, shiny, can be hammered into sheets or pulled into wires, do not dissolve.
Name the four different types of atom models.
Dot diagram, structural formula, ball-and-stick model, and space-filling model.
Describe an ionic bond?
Usually solid and brittle at room temperature, high boiling and melting points, good conductor when dissolved.