General Vocabulary of Chemistry
General Vocabulary of Chemistry
1. Substance :
A type of
matter with a fixed composition.
2. Compound : A substance in which the atoms of 2
or more elements are combined.
3. Heterogeneous Mixture : Mixture in
which different materials can easily be distinguished.
4. Homogeneous Mixture : Contains 2
or more gases, liquids, or solids substances blended evenly.
5. Solution :
Homogeneous
mixture with particles so small that they cannot be seen with a microscope.
6. Colloid :
Type of
mixture with particles that are larger than those in solutions, but not heavy
enough to settle out.
7. Tyndall Effect :
Scattering
of light by colloidal particles.
8. Suspension :
Heterogeneous
mixture containing a liquid where visible particles settle.
9. Physical Property : Characteristic
of a material you can observe without changing the identity.
10. Physical Change : A change in
size, shape, or state.
11. Distillation :
A process
for separating substances by evaporating a liquid and recondensing its vapor.
12. Chemical Property : Characteristic
of a substance that indicates whether it can undergo a chemical change.
13. Chemical Change : A change of
one substance to another.
14. Law of Conservation and Mass: The mass of all substances that are
present before a chemical change equals the mass of all the substances after
the change.
15. Kinetic Theory : Explanation
of how particles in matter behave.
16. Melting Point :
The point in
temperature when the solid starts to liquefy.
17. Boiling Point :
The point in
temperature when the liquid starts to boil.
18. Heat of Vaporization :
Amount of
energy required for a liquid to become a gas.
19. Diffusion :
Spreading of
particles throughout a given volume until they are distributed.
20. Pressure :
Force
exerted per area.
21. Viscosity :
The
resistance to flow by a fluid.
22. Pascal :
Used to
measure pressure.
23. Nucleus :
The center
of a atom.
24. Protons :
Particles in
a atom with a positive charge.
25. Neutrons :
Particles in
a atom with no charge.
26. Electrons :
Particles in
a atom with a negative charge.
27. Electron Cloud : Area around
a nucleus where electrons are mostly found.
28. Atomic Number : Number of
protons in an atom.
29. Mass Number : This number
is the sum of the number of protons and neutrons.
30. Isotopes :
Atoms of the
same element that have different numbers of neutrons.
31. Average Atomic Mass : Is the
weighted average mass of its isotopes.
32. Periodic Table :
A table
filled with elements in order of atomic numbers, etc.
33. Groups :
The vertical
columns in the periodic table.
34. Electron Dot Diagram : Uses the
symbol of the element and dots to represent electrons.
35. Periods :
Horizontal
rows of elements.
36. Metals :
Good
conductors of heat and electricity.
37. Sublimation :
The process
of a solid going directly into a vapor.
38. Oxidation Number : Tells you
how many electrons an atom has gained or lost.
39. Polyatomic Ion :
Positively
or negatively charged, covalently bonded group.
40. Chemical Reaction : More than
one substances turning into other substances.
41. Reactants :
Substances
that react.
42. Products :
Substances
that are made.
Hi Rahmi 👋 can you give me some example about acid?
BalasHapusExamples of acids are acetic acid (found in vinegar) and sulfuric acid (used in batteries or car batteries)
Hapusgive me example of colloid?
BalasHapusButter, milk, and syrup
HapusWhat is diffrent grouo and periode?
BalasHapusThe period is the horizontal rows in a periodic table. Elements gain one proton for each space moving left to right across the table. and the group is the columns in the periodic table. Elements in groups have similar chemical and/or physical properties
Hapuscan you give me more explain with the sentence from your vocabulary?
BalasHapusCompound: Different elements combine to make a compound
Hapus