Year 9
Compounds
Define a compound, write compound formulae and name compounds based on the atoms they contain.
Year 9
Compounds
Define a compound, write compound formulae and name compounds based on the atoms they contain.
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Lesson details
Key learning points
- Define a compound and know they have their own unique properties
- Write names and formulae for compounds
Equipment
Periodic table
Licence
This content is made available by Oak National Academy Limited and its partners and licensed under Oak’s terms & conditions (Collection 1), except where otherwise stated.
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6 Questions
Q1.
Atoms are the _______ unit of matter.
largest
medium
Q2.
A one or two letter representation of an element is known as its chemical .
Q3.
Two or more atoms bonded together is known as a .
Q4.
Match the elements to their chemical symbols.
O
H
C
F
Q5.
Starting with lithium, put these elements in the correct order going down Group 1.
Q6.
The chemical formula for water is …
H2
CO2
O2
6 Questions
Q1.
Match each keyword to its definition.
A substance containing one type of atom.
Two or more atoms bonded together.
Two or more different elements bonded together.
Two or more elements not bonded together.
Q2.
A chemical compound contains elements in ________ proportions.
equal
unequal
variable
Q3.
The properties of compounds are _______ the properties of the elements they are made from.
exactly the same as
similar to
Q4.
What is the correct formula for magnesium sulfate?
MGCO3
MGO
MGS
Q5.
Which two are rules used for writing chemical formulae?
A large 2 is used at the front of the compound if there is two of each atom.
Subscript numbers are placed to the right of the corresponding element.
You simplify the formulae to the simplest whole number ratio.
Q6.
Name the compound that contains one sulfur atom and two oxygen atoms.
sulfur oxide
sulfur oxygen
sulfur trioxide