chemical reactions of chemistry year 7.ppt

chemistry year 7

1. What’s Your Idea?
Chemistry – Chemical Reactions
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2. Chemical reactions

3. Chemical reactions
Chemical reaction is a change in which the atoms rearrange and
join together differently to make new substances.
Reactant Reactant Product
Reactants: the
starting
substances
Products: the
substances
that are made
or produce

4. Iron nail rusted
Reactants
Product

5. Burning magnesium

6. Magnesium and acid

7. Science Week : 3R Projects

8. Photo courtesy of ([email protected]) - granted under creative commons licence - attribution