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