AREAS COVERED 1. Understanding States of Matter. 2. Understanding Changes in States of Matter. 3. Understanding Properties of Matter 4. Understanding Chemical Bonds. 5. Understanding Chemical Solutions. 6. Understanding Chemical Reactions. 7. Understanding Acid Base Balance. 8. Understanding Balanc...
1. Solid to Liquid: Melting (absorbs energy)
2. Liquid to Solid: Freezing, (releases energy)
3. Liquid to Gas: vaporization/absorbs energy
4. Gast to Liquid: condensation/ release energy
5. Gas to Solid: deposition/ release energy
6. Solid to Gas: sublimation
7. Matter: Anything that takes up space
8. Mass: the amount of matter in an object
9. How Does Matter Change?: Matter usually changes state when you add or
take away heat, which changes the temperature of the matter
10. Substance: A single kind of matter that is pure and has a specific set of
properties.
11. examples of substances: 1. Water
2. Alcohol
3. Oil
4. Food coloring
12. Solids: The particles in solids are tightly packed
13. Liquids: Liquids are also a condensed phase, however, in contrast to solids,
the particles have some translational kinetic energy, which means they have
freedom to move
14. gas phase: the phase of matter in which atoms or molecules can move
essentially independently of one another
15. Which state(s) of matter take the shape of their container?: Liquids and
gases take the shape of their containers since, they do not have definite shape
and volume. Only solids have definite shape and volume.
16. SOLIDS: have the least volume
17. LIQUIDS: have a definite volume
18. GASES: have maximum volume
19. Which of the following is correct?
(a) Solids have a definite shape and definite volume.
(b) Liquids have a definite volume but no definite shape.
(c) Gases have a definite volume but no definite shape.
(d) Liquids have both definite shape and definite volume.: (a) Solids have
definite shape and definite volume.
(b) Liquids have definite volume but no definite shape.
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, Teas 7 Chemistry
20. Which state of matter has atoms that move freely?: Gas
21. Which state of matter has atoms that can slide past
each other?: Liquid 22. Which state of matter has atoms
that vibrate in place?: Solid
23. Solute: A substance that is dissolved in a solution.
24. Solvent: the substance in which the solute
dissolves
25. Solution: A homogeneous mixture of two or more
substances
26. Osmosis: Diffusion of water through a selectively permeable membrane
27. Diffusion: Movement of molecules from an area of higher concentration to an
area of lower concentration.
28. Atom: The smallest component and the most basic part of matter that still
retains its identity
29. Atomic structure: Atoms have a nucleus and electrons. Its nucleus contains
protons and neutrons
30. Nucleus: The part of the atom that houses the protons and the neutrons
31. Protons: positively charged subatomic particles
32. Neutrons: the particles of the nucleus that have no charge. they are neutral
and without a positive or negative electrical charge; the part of the atom that
gives the atom its isotope identity.
33. Electrons: The part of the atom that has a negative (-) charge
34. Ion: An electrically charged atom
35. Cation: A positively charged ion
36. Anion: A negatively charged ion
37. Plasma: Plasma is not naturally found in nature on our earth. Instead, plasma
is produced artificially or it is found beyond our atmosphere and universe.
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