Across
- 5. Organized arrangement of elements by atomic number (8, 5).
- 7. Chemical formula for table salt (4).
- 9. Element essential for combustion and respiration (6).
- 10. Substances formed as a result of a chemical reaction (8).
- 11. Neutral subatomic particle found in the nucleus (7).
- 12. Common table salt formed from sodium and chlorine (6, 8).
- 13. Symbol used in a word equation to show a reaction occurring (5).
- 16. Element with the chemical symbol H2 (8).
- 17. Reaction that releases heat to surroundings (10).
- 21. Measurement system for acidity and alkalinity (2, 5).
- 22. Substances that undergo a chemical change in a reaction (9).
- 23. Element with the chemical symbol Zn (4).
- 24. Combination of substances that are not chemically bonded (6).
- 28. Compound with the chemical formula CO2 (6, 7).
- 29. Reaction involving oxygen that releases heat and light (10).
- 30. Substance formed when two or more elements chemically combine (8).
Down
- 1. Representation of a chemical reaction using element symbols (6, 8).
- 2. Common strong acid with the formula HCl (12, 4).
- 3. Positively charged subatomic particle found in the nucleus (6).
- 4. Reaction that forms an insoluble solid from two solutions (12).
- 6. The name for the table that arranges elements (8).
- 8. Compound with the chemical formula HCl (12, 4).
- 14. Compound with the chemical formula H2O (5).
- 15. Representation of a chemical reaction using full chemical names (4, 8).
- 18. Element with the chemical symbol Cu (6).
- 19. Element found in all living things (6).
- 20. Metal that rusts when exposed to oxygen and water (4).
- 25. Pure substance made of only one type of atom (7).
- 26. Negatively charged particle orbiting an atom’s nucleus (8).
- 27. Smallest unit of matter that retains an element's properties (4).