Unit 0 Vocabulary

3. charged group of atoms joined by covalent bonds.
5. a liquid passed through a filter.
8. a mixture in which the components are distributed uniformly and the composition and appearance are uniform.
10. species of atom identified by its number of protons in the nucleus.
11. a value known with complete certainty. Counted objects or unit conversions.
12. unit of mass.
13. a way of expressing number that are too large or too small in a decimal form.
17. all the certain digits in a measured value plus one estimated digit.
19. a number usually shown as a superscript showing how many times a value is multiplied by itself.
20. small object with can be described by physical or chemical properties.
21. unit of length.
24. a mixture in which the components are not distributed uniformly, so that the mixture contains regions of different compositions.
25. process in which solid particles in a liquid or gaseous fluid are removed by the use of a porous material which allows fluid to pass through but retains the solid particles.

1. a solid product formed from a reaction in solution.
2. agreement between an experimentally measured value and a true value.
4. to mark with a standard scale of readings.
6. a graduated glass tube with a valve at one end for delivering known volumes of a liquid.
7. the degree to which an instrument or process will repeat the same value. Agreement in measured values.
9. decimal measuring system based on the value of 10.
12. container used for measuring volume using a calibrated scale.
14. particle consisting of one or more atoms that has a net positive or negative charge.
15. unit of energy.
16. unit of amount of substance.
18. unit of volume.
22. container used for volume estimations, reactions, and heating.
23. smallest particle of an element that cannot be chemically or mechanically divided into smaller.