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Learning Objective
To explain what is meant by a “chemical reaction”
To be able to name some chemical compounds
To be able to balance equations on your work sheet
Symbols/Naming
Remember Periodic table?RULE 1: If two identical elements combine the
name does not change
This happens with the following elements:
H2
N2
O2
Symbols/Naming
RULE 2: When two elements join and one is a halogen, oxygen or sulphur the name ends with ____ide
e.g. Magnesium + oxygen → magnesium oxide
Halogens
Symbols/Naming
RULE 2: When two elements join and one is a halogen, oxygen or sulphur the name ends with ____ide
e.g. Magnesium + oxygen →magnesium oxideSodium + chlorine
Magnesium + fluorine
Rule 3: When three or more elements combine, and one of them is oxygen, the name ends with ____ate
e.g. Copper + sulphur + oxygen → Copper sulfate
Calcium + carbon + oxygen
Potassium + carbon + oxygen
Symbols/Naming
RULE 4: When three or more elements combine, and two of them are hydrogen and oxygen, the name ends with hydroxide
e.g. Sodium + hydrogen + oxygen → Sodium hydroxide
Potassium + hydrogen + oxygen
Calcium + hydrogen + oxygen
What have we learnt?
To explain what a reactant and product are!
To use our periodic table to name chemical symbols!
How subscript is used in Chemistry!
How to balance chemical equations!
Plenary
Group 1 on the periodic table refers to the Reactive metals
as we progress down the group the metals become More reactive
When 2 or more elements combine it makes a Compound
The two types of particles found in a nucleus of an atom are Protons & Neutrons
The mass number on the periodic table refers to the total number of Protons & Neutrons
Isotopes are: different atomic forms of the same element, which have the same number of protons but different numbers of neutrons.
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