FC1 Formulae Memorisation Flashcards
NO
3
Nitrate
_
CO 2
3
Carbonate
_
SO 2
4
Sulfate
_
OH
Hydroxide
NH
3
Ammonia
NH +
4
Ammonium
What are the steps to balance a chemical equation with charge
1) Write your equation as it is
2) Write the charge
3) Balance all charges
4) Draw the table
5) Balance the numbers
6) Repeat steps 4&5 until balanced
What are the ions called that do not participate in the reactions?
Spectator ions
Three types of sub-atomic particle
Electrons
Protons
Neutrons
Relative charges and relative masses of the sub atomic particles?
Electrons= -1 , 1/2000
Proton= +1 , 1
Neutron= 0 , 1
Another word for protons
Atomic number
Why is the number of electrons and number of protons the same?
Equal and opposite charges
How is cation formed?
An atom looses electrons to form a positive ion
How is anion formed?
An atom looses electrons to form a negative ion (anion)
How are ionic bonds formed?
Oppositely charged ions which are strongly attracted to eachother by electrostatic attraction
How are covalent bonds formed?
When a pair of atoms share a pair of electrons the electrostatic attraction between this electron pair (negative) and the nuclei of the two atoms involved (positive) holds the atoms together.
How do you know the difference between Ionic, Metallic and Covalent bonding?
Ionic = A non metal and a metal
Metallic = A metal and another metal
Covalent = A non metal and another non metal
How does an ion become aqueous?
In atomic solid, the positive and negative ions are locked together in the crystal. However if the substance dissolves in water, the ions all separate out and interact individually with the water molecules.
