Across
- 2. One___of oxygen is not stable, two are required for stability.
- 7. The ____ states the system mass remains constant.
- 10. A series of cloud-like energy levels called___.
- 11. Compounds that contain only carbon and hydrogen.
- 12. A___ is a combination of two or more atoms held together by covalent bonds.
- 13. method by which hydrophobic (water-repelling) particles of an ore are separated from hydrophilic (water-attracting) particles of a metallurgical pretreatment process.
- 14. Elements with properties intermediate between the properties of metals and non-metals.
- 16. Noble gases reside in group 18 on the ___of elements.
- 17. The substance that reduces another substance and is oxidized
- 20. When two or more atoms join together, they form _______s.
- 21. An atom or a group of atoms that carries an electric charge
- 22. A subatomic particle with a positive charge.
Down
- 1. the material or protoplasm within a living cell, excluding the nucleus.
- 3. In a ___, a cloudy mixture is formed in which tiny particles of one substances are held within another substance.
- 4. a representation of a chemical reaction using symbols of the elements to indicate the amount of substance, usually in moles, of each reactant and product.
- 5. The substance will remain the same through a __________change.
- 6. Combination of symbols that indicates the chemical composition of a substance
- 8. A measure of the intensity of heat, i.e. the hotness or coldness of a sample or object
- 9. An element below and to the left of the stepwise division (metalloids) in the upper right corner of the periodic table.
- 15. A combination of pure substances
- 18. a chemical substance that neutralizes alkalis, dissolves some metals, and turns litmus red.
- 19. A subatomic particle with a negative charge