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Semester Test Study Guide
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1. Rule of nature
2. Theory
3. It is discarded or changed
4.To avoid injury and to get the best results possible
5.chemistry and physics
6.Independent Variable
7. hypothesis
8.observation
9.Dependent variable
10. Scientific law
11.Physical science
13.A change that affects only the physical properties of a substance
14.A change in a substance that involves breaking and reforming of chemical bonds to make one or more different substances
15. Solid: definite volume and shape
liquid: definite volume and no definite shape
gas: no definite volume or shape
plasma: super heated charged particles;most common state of matter in the universe

16.mass
17.volume
18.density
19.atom

20. chemical bond
21. compound
22.element
23.symbol

24. formula
25.mixture
26.heterogeneous
27.question is messed up BLANK SHOULD BE HOMOGENEOUS
28.electron (negative charge outside of nucleus) proton (positive charge inside of nucleus) neutron (no charge inside of nucleus)
29.atomic number
30. because the protons and electrons in a atom are equal
31.nucleus
32.valence electrons
33.electron

34. B
35.Valence electrons can be lost, shared, or gained.
36. Decomposition
37.reactants
38. OMIT
39.products
40.chemical equation
41.coefficient

42.subscripts
43. number of each atom or mass
44.endothermic reaction
45.reactants
46.exothermic reaction

47.liquid
48. far right corner
49.Group one
50.number of valence electrons
51.35 protons and electrons

52.solid
53.compound
54.period


1.
  • Sodium oxide
  • Lead (II) oxide
  • magnesium hydroxide
  • dihydrogen monosulfide
  • copper (II) chloride
  • calcium oxide

2.
LiF
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3.
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