Across
- 4. rusting is example of:
- 6. new substance are formed
- 8. coating colour of copper when heated
- 9. it is mostly used in chip's manufacturing industry
- 10. four word element displace iron
Down
- 1. substance that undergo rancidity
- 2. (s) means in chemical Reactions
- 3. one substance displaced others
- 5. loss of oxygen and gain of hydrogen
- 7. substancs that undergo chemical changes in reaction.