Do now!
Can you continue the
sheet you started last
lesson?
He’s going
to blow!
Be careful
Neutral
Good
Excellent
MOODOMETER
Yesterday’s lesson
• Know what to look for to see if a chemical
reaction has occurred
• Give some examples of chemical
reactions
• Explain the difference between a physical
and chemical change
Chemical reactions – What to look for
Chemical reactions – What to look for
• There may be a change of colour
Chemical reactions – What to look for
• There may be a gas given off (bubbles)
Chemical reactions – What to look for
• There may be an energy change (gets
hotter or colder)
Chemical reactions – What to look for
• New substances are formed, and the
change is usually difficult to reverse
Physical changes
Melting
Boiling
Condensing
Solidifying/freezing
Today’s lesson
• Know the meanings of the words reactant
and product
• Be able to write word equations for
chemical reactions
• Know how to collect the gas produced by
a reaction
Can you gather around the fume
cupboard please?
Word equations
Zinc + sulphur
reactants
Word equations
Zinc + sulphur
reactants
zinc sulphide
product(s)
Naming compounds
Metal and non-metal
The name of the metal goes first, the nonmetal changes the ending to “ide”
Sodium + chlorine
Sodium chloride
Copper + oxygen
Copper Oxide
Metal and non-metal
The name of the metal goes first, the nonmetal changes the ending to “ide”
Sodium + chlorine
reactants
Copper + oxygen
reactants
Sodium chloride
product(s)
Copper Oxide
product(s)
Magnesium and oxygen?
Magnesium + oxygen
Magnesium and oxygen?
Magnesium + oxygen
reactants
Magnesium oxide
product(s)
Can you complete the following
word equations?
•
•
•
•
•
•
Iron + oxygen
Sodium + iodine
?
+ fluorine
Hydrogen + oxygen
Calcium + ?
Copper + sulphur
?
?
lithium fluoride
?
Calcium chloride
?
Can you gather around Mr Porter?
Collecting gas
Can you stick the sheet in your book ready
for next lesson?
Study!
You have a few spare minutes to study for
tomorrow’s test!