Across
- 3. _____ consists of two or more elements combined chemically
- 4. Atom is neutral when the number of electrons _____ with the number of protons
- 5. ______ is a method used to separate a completely miscible liquid-liquid mixture that have different boiling points
- 6. electron is particle with ____ charge
- 8. iron + _____ produce iron oxide
- 11. _______ is a method to separate compounds
- 12. mixture consists of two or more elements combined ______
- 13. _____ + oxygen produce magnesium oxide
- 14. particle with positive charge
Down
- 1. water consists of ______ and oxygen
- 2. _____ is used to separate sand and water
- 3. ______ is used to check document fraud by separating the colours from the ink used
- 7. iron + sulphur produce iron ______
- 9. _____ is used to separate coffee powder from a coffee drink
- 10. hydrogen gas produces at ______ during electrolysis process