Do now! Can you continue the sheet you started last

lesson?

He’s going to blow!

Be careful

Good

Neutral

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 zinc sulphide

reactants product(s)

Naming compounds

Metal and non-metal

The name of the metal goes first, the non-metal 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 non-metal changes the ending to “ide”

Sodium + chlorine Sodium chloride

Copper + oxygen Copper Oxidereactants product(s)

reactants product(s)

Magnesium and oxygen?

Magnesium + oxygen

Magnesium and oxygen?

Magnesium + oxygen Magnesium oxide

reactants product(s)

Can you complete the following word equations?

• Iron + oxygen ?

• Sodium + iodine ?

• ? + fluorine lithium fluoride

• Hydrogen + oxygen ?

• Calcium + ? Calcium chloride

• Copper + sulphur ?

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!