Across
- 1. Anything that has mass and occupies space
- 3. Is a chemical reaction that occurs when oxygen reacts with a substance to form a new substance and give off energy
- 6. Is a slow chemical change
- 8. Organic catalysts
- 10. A change in matter that is non-reversible
- 12. When non-metals combine
- 13. Chemical combination of two or more elements in a specific ratio
- 14. An atom or a group of atoms that had been electrically charged
- 17. Cloudy mixture that can't be separated
- 18. Occurs when two or more materials react and create new materials
- 19. A substance that reacts with a substance
- 21. An experiment in which one or more products of a chemical reaction can escape
- 23. Is a chemical reaction that takes place in the cells in your body
- 24. Anything on the periodic table, made of one atom
Down
- 2. Releases heat energy
- 4. Cloudy mixture that can be separated
- 5. metal + non-metal
- 7. The speed of a chemical reaction
- 9. Mixture of two or more pure substances that looks like one substance
- 11. Total mass of these products is always the same as the total mass of the reactants
- 15. A change in matter that is reversible
- 16. A new substance created with a chemical reaction
- 20. Absorbs heat energy
- 22. Workplace Hazardous Material Information System (abbreviation)
- 23. Are substances that help a reaction proceed faster