chemistry experiment
TRANSCRIPT
MY CHEMISTRY EXPERIMENT
By Rob Sbaglia
AIM
The aim was to find out whether I could use different metals affect a nail rusting.
EQUIPMENT
Zinc ribbon Copper ribbon Vaseline 4 iron nails 4 test tubes test tube holder
METHOD1. Wrap the copper ribbon
around a nail as pictured on the left.
2. Wrap the zinc ribbon on another nail as shown.
3. Completely cover one of the nails with vaseline.
4. Into a fourth test tube place a nail.
5. Fill each tube with water and leave standing for 4 days
RESULTS
Nail Result
Nail with copper Lots of rusting
Nail with zinc No rusting
Nail with vaseline No rusting
Nail with water Lots of rusting
DISCUSSION
It was hard to see how much rusting had happened. I think next time I might weigh the nails and see if they have changed weight.
Rusting happens when water comes into contact with iron. I read that some metals rust instead of iron if they are in there together. The rust preferred the zinc to the iron, but the rust preferred the iron to the zinc
Copper doesn’t rust
Zinc rusts instead of nail
CONCLUSION
In conclusion, copper doesn’t rust so it is no good at protecting a nail. Zinc does rust, so it can protect a nail from rusting.