This
is a list of important chemistry vocabulary terms and their definitions. A more
comprehensive list of chemistry terms can be found in my alphabetical chemistry
glossary. You can use this vocabulary list to look up terms or you can make
flashcards from the definitions to help learn them.
1.
Substance
: A type of matter with a fixed composition.
2.
Element : If all
the atoms in a substance has the same identity it becomes {blank}.
3.
Compound : A
substance in which the atoms of 2 or more elements are combined.
4.
Heterogeneous Mixture
: Mixture in which different materials can easily be distinguished.
5.
Homogeneous Mixture
: Contains 2 or more gases, liquids, or solids substances blended evenly.
6.
Solution :
Homogeneous mixture with particles so small that they cannot be seen with a
microscope.
7.
Colloid : Type of
mixture with particles that are larger than those in solutions, but not heavy
enough to settle out.
8.
Tyndall Effect
: Scattering of light by colloidal particles.
9.
Suspension
: Heterogeneous mixture containing a liquid where visible particles settle.
10. Physical
Property : Characteristic of a material you
can observe without changing the identity.
11. Physical
Change : A change in size, shape, or
state.
12. Distillation : A process for separating substances by evaporating a
liquid and recondensing its vapor.
13. Chemical
Property : Characteristic of a substance
that indicates whether it can undergo a chemical change.
14. Chemical
Change : A change of one substance to
another.
15. 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.
16. Kinetic
Theory : Explanation of how particles in
matter behave.
17. Melting
Point : The point in temperature when the
solid starts to liquefy.
18. Heat of
Fusion : The energy required to change a
substance from a solid to a liquid at its melting point.
19. Boiling
Point : The point in temperature when the
liquid starts to boil.
20. Heat of
Vaporization : Amount of energy required for a
liquid to become a gas.
21. Diffusion : Spreading of particles throughout a given volume until
they are distributed.
22. Buoyancy : Ability of a fluid to exert an upward force on an object
immersed in it.
23. Pressure : Force exerted per area. (Formula)
24. Viscosity : The resistance to flow by a fluid.
25. Pascal : Used to measure pressure.
26. Atom : Element composed of one type, the {blank}.
27. Nucleus : The center of a atom.
28. Protons : Particles in a atom with a positive charge.
29. Neutrons : Particles in a atom with no charge.
30. Electrons : Particles in a atom with a negative charge.
31. Quarks : Smaller particles in neutrons and protons.
32. Electron
Cloud : Area around a nucleus where
electrons are mostly found.
33. Atomic
Number : Number of protons in an atom is
equal to a number called {blank}.
34. Mass
Number : This number is the sum of the
number of protons and neutrons.
35. Isotopes : Atoms of the same element that have different numbers of
neutrons.
36. Average
Atomic Mass : Is the weighted average mass of
its isotopes.
37. Periodic
Table : A table filled with elements in
order of atomic numbers, etc.
38. Groups : The vertical columns in the periodic table.
39. Electron
Dot Diagram : Uses the symbol of the element
and dots to represent electrons.
40. Periods : Horizontal rows of elements.
41. Metals : Good conductors of heat and electricity.
42. Malleable : Can be hammered.
43. Transitional
Elements : Between groups 1 and 2, and 13
and 18.
44. Nonmetals : Usually gasses or brittle solids at room temperature.
45. Diatomic
Molecule : Consists of 2 atoms of the same
element in a covalent compound.
46. Sublimation : The process of a solid going directly into a vapor.
47. Metalloids : Has properties of both nonmetals and metals.
48. Allotropes : Different forms of the same element
49. Semiconductors : Elements that conduct under circumstances.
50. Chemical
Formula : A formula that shows what
elements are in a compound and what it will become.
51. Chemical
Bond : Force that holds atoms together
in a compound.
52. Ionic Bond : Force of attraction between opposite charges.
53. Covalent
Bond : Attraction formed when elements
share electrons.
54. Molecule : A neutral molecule that forms as a result of electron
sharing.
55. Binary
Compound : Composed of two elements.
56. Oxidation
Number : Tells you how many electrons an
atom has gained or lost.
57. Polyatomic
Ion : Positively or negatively charged,
covalently bonded group.
58. Chemical
Reaction : More than one substances turning
into other substances.
59. Reactants : Substances that react.
60. Products : Substances that are made.
hi ayu thanks for the vocabulary , thats help me and i want to ask something hehe , hmm can you give more vocabulary about this topic " electrolysis and coloid " ???
BalasHapusTYPES OF COLOID
BalasHapus1. Aerosol: a colloidal system, if the solid or liquid particles are dispersed in the gas. Examples: dust, fog, and clouds.
2. Sol: a colloidal system, if the solid particles are dispersed in a liquid.
3.Emulsion: a colloidal system, if the liquid particles are dispersed in a liquid.
4. Emulgator: a substance that can stabilize the emulsion and (Soap is an emulsifier of water and oil mixture and Casein is a fatty emulsifier in water.
5. Gel: a semi-rigid lyophilic colloid.
6. Gel occurs when the dispersing medium is absorbed by colloidal particles resulting in a rather dense colloid. Soap solutions in concentrated and hot water can be liquid but if cold form a relatively stiff gel. If heated it will melt again.
Electrophoresis
Is the movement of colloidal particles under the influence of electric field.
Some uses of the electrolysis process:
A. To determine the charge of a colloidal particle.
B.Untuk produce industrial goods made of rubber.
C. To reduce the air pollutant released by the factory chimney.
Please provide easy tips to memorize vocab easily
BalasHapusWell after we see the main difficulties, this is the tips, so the more easy to learn English ya ...
HapusA Brief and Easy Way to Learn English
1. Memorize every 1 day at least 10 vocabulary words
2. Create a comfortable environment for us
3. Routine practice in daily activities
4. Often hear and sing English songs
5. Often watch movies, music videos of English
6. Often read and translate an English book
7. Try to pratek with native speakers
Learning English needs to be done with pleasure, good luck ...
How to make a basic vocabulary ?
BalasHapusThe wrong vocabulary when spelled is only the most commonly used Indonesian vocabulary. And also the vocabulary that I have found the correct spelling according to the Indonesian Language Dictionary (KBBI) and also some references I get from WikiPedia.
HapusFor example on the word Activity or Activity
Both of these vocabulary if we recite it will not sound the difference between writing with the letter "v" and the letter "f". But if this vocabulary we find in a writing, of course, will clearly see the difference between the two. Then which one is true, what is "activity" or "activity"?
This vocabulary stems from the absorption of foreign vocabulary which was originally "activity" not from the word "active". Meanwhile, according to the rules that have been agreed upon every vocabulary result of foreign-language absorption ending -ity will be absorbed into the -itas, activity becomes activitas not activity because initially not from the word active. Another example of university becoming a university and reality becomes reality.
What it means "malleable = can be hammered"? cause i don't get the mean.
BalasHapusmalleable
Hapusadjective
1(of a metal or other material) able to be hammered or pressed into shape without breaking or cracking.
‘a malleable metal can be beaten into a sheet’
1.1 Easily influenced; pliable.
‘they are as malleable and easily led as sheep’
Origin
Late Middle English (in the sense ‘able to be hammered’): via Old French from medieval Latin malleabilis, from Latin malleus ‘a hammer’.
Synonyms: malleable, ductile, plastic, pliable, pliant
These adjectives mean capable of being shaped, bent, or drawn out: malleable metals such as gold and silver; ductile copper; a plastic substance such as wax; soaked the leather to make it pliable; pliant molten glass.