Across
- 3. Measure of how fast velocity is changing
- 5. number equal to the sum of the atomic masses of the atoms in a molecule.
- 7. degree to which a chemical substance or a particular mixture of substances can damage an organism
- 8. heterogeneous mixture that contains solid particles sufficiently large for sedimentation.
- 13. chemical reaction that occurs between a fuel and an oxidizing agent that produces energy, usually in the form of heat and light.
- 14. chemical symbol of magnesium
- 15. process by which an atom or a molecule acquires a negative or positive charge by gaining or losing electrons
- 17. semi-solid that can have properties ranging from soft and weak to hard and tough
- 20. CHANGE, process in which one or more substances are altered into one or more new and different substances
- 21. molecules composed of only two atoms, of the same or different chemical elements
- 23. process for the separation of mixtures of immiscible liquids or of a liquid
- 26. A silvery-white, hard metallic element that occurs abundantly in minerals such as hematite, magnetite, pyrite, and ilmenite
- 28. process whereby atoms or molecules in a liquid state
- 29. substance formed when two or more chemical elements are chemically bonded together
- 31. smallest constituent unit of ordinary matter that constitutes a chemical element.
- 34. reaction or direct combination reaction is one of the most common types of chemical reaction.
- 35. average mass of atoms of an element,
- 38. process by which a substance changes from the solid phase to the liquid phase
- 39. compund type of chemical bonding that involves the electrostatic attraction between oppositely charged ions, and is the primary interaction occurring in ionic compounds.
- 40. substance whose atoms all have the same number of protons
- 42. type of phase transition, or a change in a state of matter, just like melting, freezing, and evaporation.
- 45. measure of mass per unit of volume
- 47. force exerted by the substance per unit area on another substance
- 49. compound chemical bond that involves the sharing of electron pairs between atoms
- 50. laboratory technique for the separation of a mixture.
Down
- 1. substance with high electrical conductivity, luster, and malleability, which readily loses electrons to form positive ions
- 2. decimal unit prefix in the metric system denoting multiplication by one thousand
- 4. measure of how easily a substance bursts into flame, through fire or combustion.
- 6. type of colloid, of the form of one solid dispersed in another continuous solid.
- 9. mixture of two or more liquids in which one is present as droplets, of microscopic or ultramicroscopic size
- 10. reaction is a type of chemical reaction in which the reactant ions exchange places to form new products.
- 11. process of separating components of mixtures by using magnets to attract magnetic materials.
- 12. a type of change in which the form of matter is altered but one substance is not transformed into another.
- 16. sample of matter with both definite and constant composition and distinct chemical properties.
- 18. vector quantity, equal to the speed and direction of a particle
- 19. occupies space and has mass.
- 22. chemical symbol of carbon dioxide
- 24. reaction is a type of chemical reaction in which one reactant yields two or more
- 25. unit prefix meaning "one billionth"
- 27. element that doesn't have the characteristics of metal
- 30. component of an atomic nucleus with a mass
- 32. chemical symbol of titanium
- 33. he push or pull on an object with mass that causes it to change velocity
- 36. chemical symbol of chlorine
- 37. PROPERTY, characteristic of a substance that may be observed when it participates in a chemical reaction
- 41. chemical symbol of osmium
- 42. type of colloid in which solid particles are suspended in a liquid
- 43. chemical element of Group 1
- 44. property of matter that depends only on the type of matter in a sample and not on the amount
- 46. chemical symbol of strontium
- 48. colloidal system in which the particles are gas bubbles and the medium is a liquid