Across
- 1. a statement you can test by doing an experiment and taking measurements
- 3. A charged atom or group of atoms formed by the gain or loss of one or more electrons
- 6. They can be easily drawn out into wires
- 7. a starting chemical for a reaction
- 8. Process where liquid changes into gas
- 14. a particle with a charge of 1+ and a mass of 1 unit
- 16. Made of atoms of different elements or compounds that are not bonded together
- 18. a substance containing only one atom
- 19. A process in which a soluble substance forms a solution
- 22. an insoluble chemical produced during a chemical reaction
- 24. Something that contains different elements or compounds that are not bonded together
- 27. A particle with no charge and a mass of one unit found in the nucleus of an atom
- 28. atoms of the same element, that have different numbers of neutrons
- 29. the amount of solute that will dissolve in 100 grams of a solvent
- 30. process where liquid changes into solid
Down
- 2. the process of breaking down a compound by passing a current through it
- 4. Indicates whether something is an acid or an alkali
- 5. a particle with no charge and a mass of one unit found in the nucleus of an atom
- 8. gives out heat energy
- 9. a mixture where atleast one other substance is added to a metal
- 10. The physical change in which a gas turns into liquid on cooling
- 11. process where solid turns to liquid
- 12. takes in heat energy from the surrounding
- 13. a compound formed between oxygen and other element
- 15. A mixture obtained when a solute is dissolved in a solvent
- 17. A unit of two or more atoms held together by covalent bonds
- 20. Breaks up easily when struck
- 21. The smallest particles, that we cannot break down further in chemical reaction
- 23. Shells that are arranged around the nucleus
- 25. Can be bent or hammered into shape
- 26. A chemical made in a chemical reaction