CrossWord Puzzle

2. chemical name for water
4. a type of chemical bond in which one atom loses an electron to form a positive ion and the other atom gains the electron to form a negative ion.
5. is the ease with which a combustible substance can be ignited, causing fire or combustion or even an explosion.
6. is any compound that contains a significant amount of carbon
9. is a property of matter that does not change as the amount of matter changes.
12. describe the characteristic ability of a substance to react to form new substances
14. can be found in various Earth materials that act as insulators and conductors of varying degrees and shapes.
16. the process by which an unstable atomic nucleus loses energy by radiation
17. compounds that are made up of two or more elements other than carbon
18. is a physical property of metals that defines their ability to be hammered, pressed, or rolled into thin sheets without breaking.
19. is a mechanical process which involves the use of the centrifugal force to separate particles from a solution according to their size, shape, density, medium viscosity and rotor speed.
20. is a single kind of matter that cannot be separated into other kinds of matter by any physical means.

1. is an inorganic compound with the formula Na F.
3. is the reciprocal of electrical resistivity.
7. the process involving the conversion of a liquid into vapor that is subsequently condensed back to liquid form.
8. a mixture in which the composition is not uniform throughout the mixture.
10. technique for separating the components, or solutes, of a mixture on the basis of the relative amounts of each solute distributed between a moving fluid stream, called the mobile phase, and a contiguous stationary phase.
11. is a chemical compound consisting of exactly two different elements.
13. a class of ionic compounds that contain polyatomic ions, particularly three different types of atoms.
15. is a property that depends on the amount of matter in a sample.