Chemical & Covalent Bonds Flashcards
The goal of all atoms is to….
have a balanced number of valence electrons
Ionic bond
when one atom transfers valance electrons to another to have a stable amount of valance electrons and holds together cat ions and anions
An ion with a negative charge is an
Anion
If an Ion is trying to lose an electron it will have a ___ charge
positive
If an Ion is trying to gain an Ion it has a ___ charge
negative
An ion with a positive charge is a …
cation
prefix for 1-5
1- mono
2-di
3-tri
4-tetra
5-penta
prefixes for 6-10
6- hexa
7- hepta
8- octa
9- nona
10- deca
Na & Cl are
chemical symbols
NaCl is..
chemical formula
2Na + Cl -> NaCl is a..
chemical Equation
Law of conservation of mass
mass is neither created or destroyed in a chemical reaction
Synthesis or Addition reactions
when 2 or more substances combine to form a new compound
their is ___ plus sign on the ___ of a Synthesis Reaction
1, left
Decomposition Reactions
single compound is broken down to produce 2 or more smaller compounds
Single Displacement
One element replaces a similar element in a compound, One material by itself
In a Decomposition reaction their is __ plus sign on the __ of the arrow
1, right
A Single & Double Displacement have ___ Plus signs
two
Double Displacement
Ions form 2 compounds in a solution and exchange places; one material getting broken down
AB = A+B is an example of
Decomposition Reaction
A+B = AB is an example of
Synthesis Reactions
AX + B = BX+ A is an example of
single displacement
AB+ CD = AD + CB
Double Displacement
Combustion
a substance combines with 02 and releases energy; must create carbon dioxide and water/steam
